YouTube star Sam Pepper is on the hot seat after playing a prank in which his victim is led to believe his best friend is kidnapped and killed right in front of him.

In video of the prank, Colby Brock, one half of the Vine duo Colby and Sam, is fixing his car in the middle of the street with partner Sam Golbach when a masked man covers Golbach's head with a bag, tapes together his hands and feet, and stuffs him in the trunk of the car.

The next cut shows both Brock and Golbach tied to chairs on a Los Angeles rooftop, the masked man menacing Golbach with a gun. The hooded figure then "shoots" Brock in the head, sending Golbach into a hysterical panic.

Although Brock gets up and reveals it was a prank, many have commented on the YouTube video with outrage and disgust. Many users have taken to Twitter to blast the video, which has been viewed more than 2 million times since it was posted Sunday.

Pepper has two million followers on YouTube, and one million followers on Twitter. Colby and Sam have posted a statement, reassuring fans that Golbach holds no animosity towards Pepper and has not been traumatized by the prank.

See the video.