Chapter Twelve: Anatomy of a Murder

"And, though one question had been answered that night, that it was Clifford Blossom who killed Jason, a new mystery loomed over Riverdale. Why had he done it? It was a question only Clifford himself would be able to answer..."

- Jughead Jones

"Chapter Twelve: Anatomy of a Murder" is the upcoming twelfth episode of the first season of Riverdale.

Synopsis
THINGS ARE NOT ALWAYS AS THEY SEEM – Archie and Veronica are shocked to learn of the arrest but know they need to come clean to their parents about what they uncovered. Still hurt by the betrayal of his friends and torn over who to trust, Jughead reluctantly joins them in a quest for truth. Meanwhile, Cheryl confronts her mom about why she treats her so much worse than she ever did with Jason.

Starring

 * KJ Apa as Archie Andrews
 * Lili Reinhart as Betty Cooper
 * Camila Mendes as Veronica Lodge
 * Cole Sprouse as Jughead Jones
 * Marisol Nichols as Hermione Lodge
 * Madelaine Petsch as Cheryl Blossom
 * Madchen Amick as Alice Cooper
 * Luke Perry as Fred Andrews

Guest Starring

 * Casey Cott as Kevin Keller
 * Martin Cummins as Sheriff Keller
 * Robin Givens as Sierra McCoy
 * Molly Ringwald as Mary Andrews
 * Skeet Ulrich as FP Jones
 * Nathalie Boltt as Penelope Blossom
 * Peter Bryant as Mr. Weatherbee
 * Barclay Hope as Cliff Blossom
 * Lochlyn Munro as Hal Cooper
 * Rob Raco as Joaquin DeSantos
 * Christopher Rosamond as Mustang
 * Tiera Skovbye as Polly Cooper

Co-Starring

 * Wonita Joy as Counter Lady
 * Samantha Spear as Deputy
 * Trevor Stines as Jason Blossom

Quotes
"Everybody keeps coming up to me and hugging me, and telling me that I must be so relieved that my brother's killer has finally been caught... This nightmare is over. But then why doesn't it feel that way?"

- Cheryl to Betty

"You did a bad thing, daddy... And now everyone knows."

- Cheryl to Cliff

Trivia

 * The title for this chapter is named after the 1959 film Anatomy of a Murder.
 * Jason Blossom's Killer is revealed in this episode.
 * It is revealed that the Blossoms and the Coopers are relatives.
 * Joaquin, Hal, and FP all had their secrets confessed in this episode.