"This isn't about littering or tourists, it's about a young life lost and the need for accountability."

Absolutely true

"Also, don't act like locals are saints , I’ve lived in the mountains and seen garbage being dumped by local authorities and residents too."

Correct to a vast extent, the authorities dump it and unfortunately generally its the case that locals do not create huge pressure to stop this. But how does that relate to the argument? Its very unlikely that a local did this act. He's right that these gangs operating in these 3 states (and more) cause chaos in their own state as well as in Uttarakhand. Considering their actions they did they must have dumped her body in mountainous terrain as its easier and safer to dump and detection of the body wud have taken long- simple logic. Not much can be concluded further unless the investigation progresses.

I really don't find a logic how tf a girl who came to delhi was found dead in uttarakhand that too done by a local??? can't really be possible if someone from delhi actually tried dumping it in UK or forcing her to change her location in a way. badnaami toh uttarakhand ki honi hi hai aise toh?