'Stuart Fails to Save the Universe': Raj's fate explained

Alternate-universe Rajesh Koothrappali returns in 'Stuart Fails to Save the Universe' but is shot and killed by Grand Caliph Barry Kripke.

Raj's bride was devoured by a giant moth shortly after their wedding, a darkly comic twist.

Series co-creators Chuck Lorre, Bill Prady, and Zak Penn chose this narrative for storytelling depth and dark humor.

Raj was killed after repairing a quantum interference device, as the character was needed to solve a key equation.