A Stunt Turns Deadly for a Couple Seeking YouTube Fame

On Monday evening, the couple suddenly upped the ante when, the authorities say, Ms. Perez, 19, shot at a thick book that Mr. Ruiz, 22, was holding, apparently believing that the bullet would not make it through the volume.

But the high-risk stunt went horribly wrong: The bullet entered Mr. Ruiz’s chest and he died at the scene.