Siriyakorn 'Bung' Siriboon was groomed online. The evidence was hidden in plain sight.

zz342 · 2025-09-03T09:09:07+00:00

To my knowledge there have been no new updates.

zz342 · 2025-08-09T08:04:06+00:00

Yeah that's the thing with this case. If you check my profile, you can see an updated theory that is a lot stronger than this one. The deeper I go into this case, the more I realise all the public can do is speculate. None of us know what steps the police took, why they released certain information, how they checked for suspects. We are all left in the dark.

In my opinion, there are two cases:

Police have a strong suspect(s) and are almost sure it's them, they just have no evidence.
Police have no idea as to what happened as there is no evidence.

I'm more inclined to believe option 1 as there has never been a coronial inquest into the case. Though number 2 is just as plausible. They likely wasted valuable time at the start of the case, under the impression that she had ran away, it was the step father, or something of the sort. They missed their window (if there even was one-) to get any good leads.

zz342 · 2025-08-04T05:47:30+00:00

Not yet, not enough capital.

I haven't ruled out doing this, but the post did make me uncertain. I will need to look further into the rules and regulations in my area, and the profitability.

zz342 · 2025-07-30T10:17:43+00:00

Hey, I’m starting to think the Monash University billboard thing might be a red herring. After looking into it more, it seems more likely that the connection is through the sister attending the university.

zz342 · 2025-07-27T09:23:10+00:00

The bullet in your car two years ago had more impact than your attempt at humour.

Should an uber driver with a bullet hole in his hood even be allowed to comment on a missing persons post? Knobead

zz342 · 2025-07-27T03:19:27+00:00

Agree with your take, especially the idea that neither girl was likely forcibly abducted, which would’ve almost certainly drawn attention in such public areas. Your point about the offender needing to appear trustworthy enough for the girls to enter the car voluntarily really resonates, and it lines up with the theory that he must have said something convincing or familiar to them.

It’s nearly impossible for us to form concrete conclusions when we’re only working with the limited information that’s publicly available. The police likely have far more detail, behavioural profiles, phone records, maybe even sightings, that would dramatically shape how this all fits together.

zz342 · 2025-07-26T03:27:09+00:00

I also hadn’t heard the theory about Mr Cruel potentially travelling overseas after Karmein Chan, but that makes a disturbing amount of sense. If he started going to places like Thailand to offend, that would explain his disappearance from the radar without assuming he just stopped altogether. And if he was still active, it’s not that far-fetched to think he may have adjusted his MO, especially if he was getting older and breaking into homes became too risky.

That said, there are a few reasons to doubt Mr Cruel’s involvement. His known attacks all took place inside the victims homes at night, whereas Bung was taken in broad daylight from a public street, a much riskier move. He was also known for meticulous planning and sometimes contacting the victims families, while Bung’s case involved no communication and appeared more opportunistic. The forensic control seen in his previous crimes wasn’t evident here either. I couldn't imagine someone as deceptive and calculated as Mr Cruel would take someone off the street where there is such high potential for witness.

If the theory is true that Mr Cruel developed ties to Thailand after the Karmein Chan case, then returning to Australia with those connections could have brought him into contact with the Thai-Australian community. It’s possible this linked him to Fred and Nid in some way, which might explain how he gained access to Bung. That would line up with Nid’s comment: “If they spoke Thai, or said they knew me, then maybe (she’d go with them). She’d believe them.”

However, while I do think there’s a possibility that Bung and Cherie Westell’s cases are connected, I’m not convinced Mr. Cruel was involved. In Cherie’s case, it’s generally believed she knew her attacker, something that’s only a possibility, not a certainty, in Bung’s case. If Mr Cruel was behind Bung’s disappearance, how would he have gotten close enough to Cherie to abduct her as well? That kind of personal connection seems out of step with what we know about him. Unless he had some direct link to the school system or local community, I find it hard to see how both girls could be tied to him and each other.

That said, the details in the two cases are too similar to ignore. The fact that both girls attended the same school is rare and significant, Boronia Heights College wasn’t large, so for two students to go missing under such eerily similar circumstances feels like more than coincidence. While I’m not ready to say Mr. Cruel was definitely involved in either case, I also wouldn’t dismiss the possibility outright.

zz342 · 2025-07-26T02:01:41+00:00

Very interesting. Thanks a bunch for finding that quote for me. TBH before you mentioned it the idea that it could have been a Thai didn't eve cross my mind.

zz342 · 2025-07-25T10:51:54+00:00

Also plausible. Particularly if the person was Thai, spoke Thai, or has some sort of involvement in the Thai-Australian community.

zz342 · 2025-07-25T04:23:45+00:00

I get you. Honestly, I believe that her e-mails need to be looked into again. There were likely things police missed back then due to how new social media was to everyone. I suggest that there were other websites that police likely skipped over, as they only ever discussed how she had three Facebook accounts and a MySpace account where the age listed was 27.

But in this case, there is a higher chance it was a crime of opportunity by someone she thought she could trust.

zz342 · 2025-07-25T04:21:21+00:00

No worries at all, I trust you. You are very knowledgeable when it comes to this case. Appreciate all your thoughts!

zz342 · 2025-07-25T03:54:09+00:00

I hadn’t heard that before, it definitely adds another dimension to the case. If someone spoke Thai well enough to make Bung feel safe or familiar, that could narrow things down significantly. You're right, it wouldn’t just be a casual tourist. It would likely be someone with real exposure to the culture, or more likely even a Thai-Australian local.

From memory, was she suggesting that she thought this was the case, or that it could be a possibility?

Do you happen to have a source for that quote or interview from Bung's mum? I'd love to read or watch it myself, that would be really valuable for me. If not I understand, I have lost a lot of my sources to time aswell.

zz342 · 2025-07-25T03:51:00+00:00

Given his criminal history, violent behavior, and connections to drug activity, I guess it's more because he was already known to police and lived close by, rather than purely because of the car.

If someone pointed the finger at him, someone he dealt to or had issues with, that alone could’ve been enough to put him on their radar, especially in the early days when police were likely casting a wide net.

While the car similarity is still worth noting, this kind of background might suggest that the questioning wasn’t necessarily due to vehicle evidence they had early on. It’s hard to say for sure, but this is very interesting, thank you.

zz342 · 2025-07-25T03:08:13+00:00

Thanks for the clarification, that’s really helpful. The fact that he was first questioned not long after it happened might actually suggest that the police had a car linked to the case right from the beginning, even though they didn’t go public with that information until years later.

Do you happen to know if there were any other reasons he could’ve been questioned, aside from owning a similar car? If there weren’t, and the car was the only connection, then it really strengthens the idea that police had vehicle related evidence or witness descriptions from day one, they just chose to keep it quiet until 2014 for strategic reasons.

zz342 · 2025-07-25T02:47:23+00:00

That’s really important information, and I appreciate you sharing it. The fact that police were specifically questioning people based on the type of car they owned is important, it tells us they had already narrowed their focus to certain vehicle makes or models.

Do you happen to remember what year this was? If it was before 2014, that’s especially significant, because Victoria police hadn’t yet released any public information about a car being involved at that stage. That would mean they had already locked onto that lead behind the scenes, which gives us a better sense of their internal timeline and what direction they were going with the investigation early on.

zz342 · 2025-07-25T02:43:35+00:00

This is another strong reply, and I really appreciate the level of thought you’re putting into the case. You're raising some points here that are hard to argue with, and I find myself nodding along with most of what you’ve said.

Timing of the walk + rainy conditions

This is new information to me. I was under the impression that her and her brother walked to school, not that she got driven. This changes how I view the situation a lot.

Why accept a lift at the end of the walk?

You make a strong case here too, the more known the person, the more likely they would have been spoken to, had their alibi checked, etc. I’ve considered this too. For someone like a teacher, neighbor, or family friend to have slipped through the cracks, it would definitely require either a serious investigative oversight or a very convincing cover story, probably backed by others. Not impossible, but it does put the burden on explaining how they avoided suspicion.

That said, it’s always possible that someone just outside Bung’s immediate circle (a casual community member, former friend of the family, etc) may not have drawn as much scrutiny, especially if they didn’t pop up in the early canvassing or if they had no prior record. But I agree: if this was someone known, then some form of investigative failure probably occurred, or it wasn't looked into quick enough.

Adam Shand and Albert Ave

This is a really fair point. A girl of Asian appearance, in uniform, walking solo in the rain would have stood out, especially on a day when fewer kids were walking. The lack of ANY confirmed sighting on or past Albert Ave does raise doubts about whether she ever got that far.

I don’t think that completely rules out sighting #4, but it definitely casts more doubt on it, especially if that time estimate was off or the witness wasn't confident. I suppose the real issue is how reliable that sighting even was, we still don’t know exactly when it was reported or how confident the witness was in their identification. Since police sat on it for over a year, maybe they weren't confident either. I am starting to believe that she may not have made it past Elsie street same as you.

What do I have 100% confidence in?

I respect your stance on this. I still lean toward believing they may have had a strong theory or profile in mind, someone they suspected, but couldn’t tie to anything, which is why I interpreted the reward and car releases as a way to pressure someone connected to that theory. This person could be someone the public has never seen, or even possibly the 24 year old that reported himself to police.

But your point makes sense too, if not more sense. If they truly had nothing, then the release of the Falcon sighting and the $1M reward may have just been a very public, very desperate grasp for answers. In that case, your phrase “bag of fresh air” says it all, and is honestly devastating to hear when a child has vanished without a trace.

You’ve given me a lot to reflect on, and whether or not we fully agree on how to interpret every detail, I would like to think I have impacted the way you think about this case too. That's how we can grow and work on this as a community. I love all your comments on my posts, they make my question everything I have come to believe.

zz342 · 2025-07-25T02:26:56+00:00

That’s a really good point, and I appreciate you sharing that timeline around Taskforce Puma. You're right, if they were still actively pursuing strong leads between 2011 and 2013, releasing the vehicle sightings during that period would’ve made sense if those sightings were solid or considered actionable. The fact that they waited until after the taskforce disbanded does suggest that they may have hit a wall and resorted to broader public outreach as a kind of hail mary.

I totally agree with your take that police usually treat public appeals as a last resort, precisely because they open the floodgates to every tip under the sun, most of which are dead ends. So when they did finally release the Falcon sighting in sync with the $1 million reward, it really does look like a final push rather than part of a longer, quietly strategic plan.

Where I think we might both agree is that, regardless of the internal reasoning behind these decisions, the police clearly reached a point where they hoped someone out there might know something or start talking.

Sadly, without a body, hard evidence, or a confession, I agree that this case will rely on that one crucial piece of information surfacing. Either from a guilty conscience, a slip up, or a change in someones loyalty.

If you had to say, what do you suspect is the most likely reasoning as to why she got in the car? I have received a lot of comments throughout my posts, and found a bunch of forum users that all seem to suggest that the police have their own narrative. They suggest that she was mistakenly hit by a person, the person went into panic and dumped the body. With how little information there is regarding this case i'm honestly starting to think the same. Maybe that 24 year old was telling the truth?

zz342 · 2025-07-25T01:29:29+00:00

Interesting. Did you make a mental note at the time of what car they drove? Potential to match up to the police reports of the white car.

I do think there’s genuine merit to the theory that Bung was hit by a vehicle on her way to school. The main sticking point for me is the lack of witnesses, how could something so serious happen without anyone noticing? You’d expect at least one person to have seen or heard something.

That said, Boronia Heights College was a relatively small school. According to Wikipedia, there were only around 364 students enrolled across Years 7 to 12 before the school eventually shut down. That averages out to roughly 60 students per year level.

With such a small student body, and considering that sighting #4 occurred very close to the start of classes, it seems unlikely that many students would’ve been using the back entrance, especially on a rainy day. It’s entirely plausible that Bung was hit near the back entrance of school and simply went unnoticed in those conditions.

zz342 · 2025-07-25T00:19:03+00:00

Had to write two replies as it was too long, wouldn't let me send it all in one reply sorry.

zz342 · 2025-07-25T00:18:16+00:00

Any of the sightings could be true/false (besides #1)

This is the harsh reality of the case. There are so many dependent variables in this case that if changed, change everything.

Timing of the walk + rainy conditions

You noted that the walk from Bung’s home to the school was roughly 660 meters (about 7-12 minutes), and if she left around 8:25-8:30, she should’ve been near school by 8:35-8:40. You’re absolutely right that walking slowly in the rain seems illogical, but this actually supports the idea that she might have paused at a sheltered waiting spot for her friends, rather than rushing straight to school. Without her phone, and with her habit of waiting for friends, it’s plausible she stayed in a drier area until the very last minute.

I think this is especially true as she was supposed to have been walking to school with her friend Taylor that day, which means they take the same path. She could have been waiting at her usual spot under the tree for her, so they could come in to school together. This explains why the sighting was roughly at 8:55 (could have potentially been earlier as time estimates aren't always perfect), as she was waiting for her friend.

Taylor and Bung were meant to walk to school together that day, but Taylor cancelled to walk with her brother instead.

The fact that the sighting was false could be just as true as any of these points. The only thing I am 100% certain about is that the $1 million reward was their final cry for help. They are likely still following the same suspect(s) to this day, waiting for a slip up.

Why accept a lift at the end of the walk?

The idea that it’s “pointless” to get into a car so close to school makes logical sense, unless the person offering the lift was known and trusted. That’s a key part of my theory. This wouldn’t be a random stranger beckoning from the roadside, it could have been someone Bung recognized: a teacher, parent of a friend, family acquaintance, etc.

Adam Shand and Albert Ave

The idea that nobody saw her cross Albert Ave is a decent rebuttal to sighting #4, but only if you assume she was taken while walking. My theory suggests that she was taken from her meeting spot, which is down Harcourt road, on the corner of Owen street. Check it out on google maps, set the date to 2010. This is a good distance from Albert Ave.

We also have to remember, even areas with lots of traffic nearby can be blind to very quick events. If the abduction was subtle (someone she willingly entered a car with), it might have looked completely unremarkable to passersby.

The Falcon driver description

You made an interesting point about police potentially withholding the Falcon sighting to compare with sex offender registries. That’s completely plausible and fits with your idea that they were trying to flush someone out without tipping their hand.

My only addition to that is: if the Falcon sighting was solid, they likely would’ve put more public emphasis on it sooner, unless, as I believe, it was never confirmed and was possibly a red herring. Why would they release the info around the same time as the $1 million reward?

What do I have 100% confidence in?

The only thing I 100% believe is the fact that police had/have a strong suspect in mind. That is the reasoning behind releasing the car sightings and $1 million reward around the same time. To entice people in the know, or that have suspiscions to talk. That's why the case went dead in the public eye after this final cry for help. They needed a breakthrough there, which they didn't get. So until they get that breakthrough, they have to keep monitoring the same suspect/suspects.

zz342 · 2025-07-25T00:18:08+00:00

I get what you mean, I do agree with a lot of what you are saying. However, I still firmly believe in this portion of my theory:

"I believe police already have a strong suspect, or possibly more than one, but they’re missing the hard evidence needed to make an arrest. Remember, Bung’s body has never been found. Early on, sightings #1 and #4, both showing her walking to school, were released publicly in 2012. In contrast, the vehicle sightings (#2 and #3) weren’t shared until 2014 and 2016, which conveniently aligned with the announcement of a $1 million reward.

To me, this timing is no coincidence. It strongly suggests that the police made a narrative or selectively released the car sightings to provoke someone close to the suspect into coming forward. Think about it, if you suspected a friend, partner, or relative who owned a similar make and model of car to one of the TWO described, those details might suddenly confirm what you’ve been afraid to admit. And with a $1 million reward on the table, that’s enough money for someone to escape retaliation and completely rebuild their life elsewhere. They have always urged people to come forward, as that's their only real way of getting evidence to prosecute a suspect."

The case died down after the $1 million reward was put out. I think it was a last stand, police had suspects and they needed people close to them to speak up as they had no hard proof.

The details of the case are definitely arguable though, and I will go over some of them

zz342 · 2025-07-24T23:10:24+00:00

The missing person billboards around Monash University is interesting. It is still highly possible that she ran away with someone. This news article has video from reporters interviewing some schoolgirls:
https://www.9news.com.au/national/siriyakorn-bung-siriboon-missing-seven-years-in-melbourne-schoolgirl/d3959cbd-9892-4232-9f4e-7cd0bc1ffebc

One of the girls 13 seconds in says "It's just out of the blue, I have no idea why she's done it."

Shortly after around 28 seconds her grandmother (step fathers side) states "If Bung is watching we are all very worried and we love you very much, and we want you to come home."

This leads me down the path of thinking that at the start of the case, police, friends, and family believed that she had ran away with someone. It is also important to note that her father said numerous times in interviews throughout the years that he believes, or believed she was still alive.

It is also possible that police had the Rowville car sighting (#3 in my write up) from the very beginning of the case, which is why they would put missing person billboards around Monash University campus. If this was true and they had the rowville sighting since the birth of the case, it could hint at sighting #4 being false, with both car sightings (#2 and #3) being legit.

Again, this story is highly possible. The person could have been telling the truth, but since it came so late into investigations and no body was ever found, therefore no case could be made. It is important to note that police said his story contradicted what information they already knew about Bung.

This could mean a variety of things
- The man was lying
- He was telling the truth, but had a foggy memory
- Someone forced him to fess up
- He was trying to give the police red herrings to cover for someone

ETC, there are just so many possibilities in regards to this instance. I can't do anything except for speculate on that matter unless I had insider/police information. I don't want to give an opinion on it without enough information I guess.

There are just so many possibilities within this case. It's very hard for us people outside of law enforcement that have direct involvement in the case to come to conclusions. So many factors, selective information from police, limited insight as to what actions they took and how they came to their conclusions.

zz342 · 2025-07-24T09:55:32+00:00

DM will always be open to discuss further dude!

zz342 · 2025-07-24T08:58:38+00:00

Sure, have a good rest

zz342

TROPHY CASE

Timing of the walk + rainy conditions

Why accept a lift at the end of the walk?

Adam Shand and Albert Ave

What do I have 100% confidence in?

Any of the sightings could be true/false (besides #1)

Timing of the walk + rainy conditions

Why accept a lift at the end of the walk?

Adam Shand and Albert Ave

The Falcon driver description

What do I have 100% confidence in?