WHY 'YELLOWSTONE'S KAI CASTER DOESN'T BELIEVE BETH KNOWS ABOUT RIP MURDERING ROWDY (EXCLUSIVE)

The actor behind Yellowstone's Rowdy believes Rip is keeping a big secret from Beth. ET spoke to Kai Caster after his character's shocking murder on Sunday night's episode, and the actor revealed why he thinks Rip (Cole Hauser) has stayed quiet about his crime for years.