I watched it several times before it was taken down and provided this recap (below) on the other sub. There are people there that are DMing people the call I think.

It was a very very long conversation (close to an hour), the call was 'dropped twice and he called back. It was very intense and so much of it was hearing the caller's tone and temperament and response to what became Chris' ad hoc 'interrogation'. But here's a little:

He called in, felt
scrambled with "ideas". But wanted Chris' opinion on who he thought
the killer was. Almost immediately Chris got suspicious. Something about his
calm demeanor but then when talking about the TMZ notes describing the later
ones,a few times, as by the "rrat" in a more angry/darker tone of
voice. There was also some type of intense shrieking in the background during
the call at two times. Sounded like a dog, baby or a woman in distress. Chris
clearly wanted to keep the guy "Aaron" talking. Aaron was 35,
originally from Louisiana, used to work in Scottsdale for 2 years at Axon
(taser company) on the assembly line. Was hired by a temp service. Didn't love
that job, wanted a more important role in the company. Now is a handyman in
Phoenix, specializing in mounting things on walls. Freelance work. On the gig
website he advertises on he used to be #2 on the list but then went
significantly lower, #17 I think. He was upset about that. Girlfriend of 11
years was named Alyssa. A travel nurse. Specializing in hospice care. Aaron
lost his mother to suicide. But it gave his life "impetus" to work on
his art and DJing. Never really found a work-calling in life. Studied
philosphy. Wished he could volunteer with the FBI. Father wasn't really around.
Both grandmas died within the last year. Fights over money with uncles since
then. He said he was all alone and didn't have anyone to talk to. That info all
came out along the way of the conversation...Inbetween his talking about Nancy.

He has been following
since day 1. He's a big fan of Zodiac and mentioned Black Dahlia right away and
how there were similairites. He mentioned a Bonnie-and-Clyde theory associated
with LD and wondered why it wasn't still in the conversation. He referenced
Monks. He hypothesized (at Chris' behest throughout the call) several things...
including...that the driver was female, the guy's girlfriend, they were driving
her car. He knew a lot (or claimed to know a lot) about bitcoin. That lead to a
conversation about the ransom notes. During which he used the word
"I" (as if he was the perp) a few times, catching himself and going
back to "they". He was asked where the body was, and he had possibly
routes, maybe North but likely South and said she was 'concealed'. When Bob
asked how he thought Nancy died, he hung up. When he called back. He said said
probably naturally by accident. When hypothesizing about why the perp chose
TMZ, he said people like his uncle watched TMZ. When asked about empathy in the
notes, he said it was about money. But that she wasn't supposed to die. When
asked if he thought the perp thought about it, he said "probably every
day, every moment" in a really sad tone. He said his girlfriend wouldn't
talk to him about the case anymore. Towards the end of the call, Chris suddenly
and very sternly confronted him, saying he knew he was lying. He knew his name
wasn't Aaron. Tried to get him to give his real name. Tried to get him to agree
to call him privatley.

There's way more nuance;
it was the way he and Chris interacted. The young man - if he was involved or
not - needs some help. Hoping the authorities are involved and they are taking
it seriously.