In the video, Caleb Sharpe advances toward the camera, firing rounds from an Airsoft pistol.
The four-minute clip, called “The Second Round,” shows Sharpe and a friend on a quest to take out a fictitious drug dealer in their neighborhood. The pair brandish several guns over the course of their mission, at least one of which appears to be a real rifle.
Numerous classmates and witnesses identified Sharpe as the Freeman High School shooter who killed one student and wounded three more Wednesday morning.
Sharpe, a sophomore, rode the bus to school with two guns stashed in his duffel bag, witnesses said. He allegedly shot sophomore Sam Strahan in the head and wounded three girls before the school custodian stopped him.
Sharpe had written notes to some of his friends weeks earlier indicating he planned to do “something stupid,” said Michael Harper, who described himself as a close friend. One of the friends passed the notes to a counselor.
Friends and classmates described Sharpe as quiet and sometimes quirky, but said they were surprised to see him turn violent. His YouTube antics, however, were well-known to some of his classmates.
“We knew he had an assault rifle, because he uses it in his YouTube videos,” said Paul Fricke, a junior.
Many of the videos on Sharpe’s channel, where he goes by Mongo Walker, are unremarkable. In one, he pretends to be Bear Grylls, the British outdoor adventurer and reality TV star, as he explores his yard and comments on exotic creatures like a white dog in the background. Others involve Pokemon GO and a challenge to eat a raw hot pepper.
But a number of Sharpe’s videos, especially more recent ones, show him playing with guns. In a video from last Halloween, Sharpe and a friend set out to destroy a pumpkin that’s grown in the fence.
At one point, he aims the airsoft gun at his friend holding the camera and shoots as the friend exclaims, “Ow!” The clip replays in slow motion before the pair go on destroying the pumpkin with an ax and stick.
As rumors of Sharpe’s role as the shooter spread across social media Wednesday, commenters took to his channel, calling the videos disturbing.
“This video is so eerie it makes me sick,” one wrote about “The Second Round.”
Investigators still were interviewing witnesses Wednesday, and Sheriff Ozzie Knezovich said little about Sharpe’s motives.
Spokane County Sheriff’s Office deputies arrested Sharpe following the shooting. He’s being held in the county’s juvenile detention center.
Eli Francovich contributed to this report.