Saturday Night '48 Hours' episode 'The Boy Who Killed His Twin'

48 HOURS on CBS. Last night's episode was called, "The Boy Who Killed His Twin" (9/27/2025). This was the season premiere with Erin Moriarty.

Note: I watched this and I don't believe for a second that this kid was sleep walking. I think he deliberately stabbed his twin sister.

Click on the CBS logo below for 48 HOURS.

CBS.