Riverdale Murder Mystery: Ranking The Top 13 Killer Suspects

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A murder most foul has been committed in the quiet town of Riverdale. The killer is still on the loose. But that looks to be changing on Riverdale Season 1 Episode 12.

Archie and friends are close to finding Jason Blossom's killer. In fact, we'll all be finding out the identity on Riverdale Season 1's penultimate episode. Who could it be?

Was it the powerful criminal Hiram Lodge? Could it be the mother of Jason's unborn child, Polly Cooper? Or might it be a family member hiding away in Thorn Hill? We will have a name!

We have ranked our Top 13 suspects as who could be the killer. Check out the list below for the analysis and share your thoughts in the comments.

Don't forget, "Chapter Twelve: Anatomy of a Murder" airs Thursday, May 4 on The CW, and you can also watch Riverdale online via TV Fanatic.



1. Hal Cooper

Hal Cooper
Mr. Cooper comes in at the top of the list for his shady behavior. He is FURIOUS that Polly is carrying Jason Blossom's baby and he did try everything to hide the shame. There's a longstanding feud between the Coopers and the Blossoms, so resorting to murder isn't out of the question.

2. Hiram Lodge

Hiram Lodge
The mysterious (and never seen) Mr. Lodge has already flexed his criminal power behind bars. The Blossoms sent him to jail and it would be the perfect retribution for an evil man like Hiram to strike the Blossom's family.

3. Clifford Blossom

Clifford Blossom
It's now been proven that he is one of the last people to see Jason alive before his death. He acted strangely suspicious around the ring and it would be a great dishonor for Jason to have left. Plus, that white hair twist screams Twin Peaks!

4. Penelope Blossom

Penelope Blossom
Similar to her husband Clifford, Penelope knows about Jason's final confrontation and there's always plenty of secrets lurking at Thorn Hill. What clinched her suspect status was her attitude when Alice revealed Polly's pregnancy on Riverdale Season 1 Episode 7. Penelope did not act shocked.

5. Polly Cooper

Polly Cooper
It's widely known that Polly was acting strange in the lead up to Jason's disappearance. Even her father expressed concern for Polly's behavior. Could Jason have gone to find her and she killed him because he changed his plans?

6. Joaquin

There's something off about Joaquin that doesn't sit right. He knows about Jason's involvement with the drugs, and he's using Kevin to get information on the case. Could he have killed Jason due to the drug debts?

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Riverdale Season 1 Episode 12: "Chapter Twelve: Anatomy of a Murder"
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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.