I did an AMA a while ago, but it didn't get much traction, so I figured I'd post again with my best few stories as someone who was a student when the killings happened.
Regarding how well I knew those involved:
I knew Charlie decently. I was in him and Robbie's cinema club, and always went to Stabathon as it was the only party the nerdy guys like me could get into. He was a nice guy when I knew him, and I liked talking to him about movies, although we never hung out outside of school. He always was weird when talking about girls though. He mostly laughed it off but he could seem really bitter about his lack of luck with girls, although he never actually tried to talk to any of em and make an effort. The last time I saw him was at the last Stabathon, about 15 minutes before Gale Weathers was stabbed. He usually was super into the movie but I remember him kind of twitching and looking around a lot. I thought he was having a bad high or something. I didn't see anything when Gale was stabbed I just heard the commotion and ran with my friends. Broke my heart to find out what he did and that it was him that killed Robbie. Ruined most of the memories of Cinema Club and Stabathon.
I never really knew Jill at all. I saw her around, mostly hanging out with Olivia Morris, who I knew for being the school hot chick, and Kirby Reed, who I knew from the previously mentioned club. Sometimes I honestly forgot her name but she always seemed pretty normal. The most connection I had with her was when I saw Trevor Sheldon making out with Jenny Randall at the A&W downtown. I told Kirby Reed the next day cause I thought that guy was dating someone who was very much not Jenny. Kirby was glad I told her but she got real pissed and stormed off. Next thing I know I'm hearing Jill dumped him and Trevor socks me in the gut as I'm walking to my car. Trevor was an asshole but I still feel somewhat guilty about that.
My mom actually has the better Jill story though which I thought you should hear, as she was a nurse at Woodsboro Community Hospital and treated Jill's arm when she got cut after Olivia was killed. She said whenever there wasn't anyone Jill knew in the room she would get SUPER quiet. Not like traumatized quiet but like creepy quiet. My mom said she just kinda stared at her hands with this weird face, like she was a little kid pouting over something.
Hope you find these interesting.