Aaron Ybarra, alleged SPU shooter, heard Columbine killer's voice in his head -- in 2011.

And this guy not only wasn't detained, he got to keep his shotgun.

http://www.csmonitor.com/USA/2014/0607/Seattle-Pacific-shooting-Despite-rage-inside-Aaron-Ybarra-found-not-detainable

Ybarra had in 2010 called 911 in a drunken stupor, telling a dispatcher that he had a “rage inside” and wanted to commit suicide. “He wanted to hurt himself and others,” according to a Mountlake Terrace police report. In 2012, police found him drunk in the street where Ybarra said he hoped a “SWAT team would make him famous.”

In 2011, Ybarra took himself to an emergency room, telling staff that he got scared after hearing the voice of Columbine High School shooter Eric Harris in his head, telling him to hurt people. He was not detained.

He “feels he identifies with one of the Columbine killers, whom he identified as Eric Harris,” counselor Deldene J. Garner wrote later in a chemical dependency assessment filed in Edmonds Municipal Court, according to the Seattle Times.

SNIP

Ramonda Brandes, Ybarra's lawyer, said in a statement after Friday's court hearing that "Mr. Ybarra suffers from significant and long-standing mental health issues, including delusions, that were in play during yesterday's tragedy."