OK I’VE BEEN READING TOO MANY RIVERDALE THEORIES BUT
I always come back to the cast’s reactions to when they found out.
1. KJ wasn’t surprised
2. Cole was slightly surprised, but thought it made sense
3. Madelaine thought it made sense and tied everything together, and also said it would ruin Cheryl’s life
4. Cami was surprised but had suspected them before
5. Lili said it was a complete surprise
6. Ashleigh said it was a complete surprise (but she’s also not in that episode)
So how could everyone kinda know except Lili and Ashleigh?
The computer scene in the promo is definitely a video of the murder (see Juggy’s reaction). I don’t think this literally reveals the killer, but I think whoever killed Jason filmed the video to scare people away or get something out of Jason. idk. they killed someone. they are obviously crazy. Since all the kids are there, and they all look equally shocked… except maybe Archie (who looks like Oh) and Betty (who looks slightly guilty or sad) and they are notably the only ones who didn’t cover their mouths in shock. I’ve seen several people say Kevin is the killer/accomplice but I honestly can’t see it. He wasn’t involved much in the last episode, so it wouldn’t flow if he was the star of e12.
Now onto the matter of the gun. Theories are flying that the Alice planted the gun and it was the one she found in Betty’s room. But in the e12 promo you see Alice holding that gun. Unless she has another gun, it is the same one that Betty had. (sidenote: I have seen a theory that says the gun Alice found in Betty’s room is not the same as Grundy’s, which is very interesting. Also the gun found in FP’s trailer doesn’t even look like Grundy’s.) And besides the Coopers, who else do we know has guns? The Blossoms (they had guns when they were looking for Polly)
My money is now on one of the parents, especially the Blossoms. In the new promo, Betty accuses Penelope and Penelope is also dragging Cheryl around, which is very suspicious. My last theory was Clifford, but he isn’t featured in the promo at all. If the promo wasn’t chronological, Polly could have confronted Penelope after they watched the video.
I found it very weird that Alice told B&V whoever isn’t in this room is a suspect because that is a very big absolute. Sure the she probably trusts Betty and Veronica wasn’t even in Riverdale, but she doesn’t know for sure, for someone who believes it could have been anyone. Alice knows who did it, but I don’t think it was her.
Betty’s dad is in the promo staring at the murder wall (i think) which is sketchy. Yet I don’t think he has enough plot for him to be the killer- it just wouldn’t flow.
Fred is in the promo threatening Archie which is very sketch. Yet Archie’s reaction to the murder video is not incriminating, not in the way Betty’s reaction is. However it does seem that Fred knows something else, like Alice. (I don’t think Molly Ringwald is the killer at all.)
FP man. I don’t know. He was definitely framed but having Jason’s jacket and then not even being surprised at seeing the gun there, let alone claiming it wasn’t his shows he was almost expecting it. But when V and Archie left the trailer they didn’t even lock it… so maybe Archie at least was expecting someone to go in after them, and the lights in the trailer while they were kissing shows a car was outside… maybe watching them? (Also how tf did they not notice that?) Why was FP ready to leave for Toledo all of a sudden??
The Lodges are suspicious, but I think they would be too obvious. I love Hermione so I don’t want her to be guilty at all. She is in the promo though…
And finally, props to Jughead for saying, “If it wasn’t my dad, who killed Jason Blossom?” in the promo, which is the most obvious question ever.