Riverdale Murder Mystery: Ranking The Top 13 Killer Suspects

On Riverdale Season 1 Episode 12, Jason Blossom's killer will finally be revealed. Who is the murderer? TV Fanatic breaks down the Top 13 suspects.
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Riverdale Photos from "Chapter Twelve: Anatomy of a Murder"

On Riverdale Season 1 Episode 12, Archie and friends decide it's time to share the truth about FP Jones with their parents. Will they take it well? We have the photos.
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Riverdale Season 1 Episode 12 Quotes

Betty: Put this on.
Archie: What?
Betty: Put it on.
[Archie puts on the jacket]
Archie: Betty, this is weird.
[Betty searches the jacket]
Betty: There's a hole in the pocket.
Kevin: Okay, now we're just grasping at straws.
Betty: Okay, no. I don't know about you guys, but whenever I have a hole in my jacket pocket, I always lose my chapstick in the lining.
Veronica: ...Or in my Monte-Blanc.
Betty: Hold on.
[She searches in the pocket and finds a USB]
Veronica: What the hell?
Kevin: Nancy Drew strikes again.

Polly: Wait, do you mean about great-grandpapi Cooper being murdered by a Blossom?
Hal: Betty, you're great-grandfather wasn't just murdered by a Blossom. He WAS a Blossom. After the murder, our family severed ties with the Blossoms and their name. We took a new one: Cooper.
Betty: I'm...a Blossom?!
Alice: Polly is a Blossom? Which makes her and Jason...relatives by blood. Which is why you wanted to...
Hal: Yeah. Alice, that's why.
Alice: Oh my God, Hal! If you were willing to send our daughter away to keep her away from Jason...
Betty: How far would the Blossoms go to keep them apart?
We need to get Polly out of that house.