The Los Angeles County District Attorney's Office has opted to not file charges against the former lead vocalist of the Illinois punk band Mest, who was arrested Sunday on suspicion of murder and booked for criminal homicide.

The 26-year-old rocker claimed that he stabbed Wayne Hughes, 25, in self-defense after the two got into an argument Sunday shortly after 8 a.m. in the parking garage of a Studio City apartment building where a woman who authorities say both men dated lives.

Prosecutors found "insufficient evidence to prove beyond a reasonable doubt that the killing was not a justifiable use of reasonable force in self-defense," D.A.'s Office spokeswoman Jane Robison said.

Lovato called 911 himself and willingly surrendered when officers arrived at the scene Sunday, Los Angeles Police Department spokesman Lieutenant Andrew Neiman said.

The "Jaded" rocker told police that Hughes had assaulted him and then, "at some point, Mr. Lovato produced a knife and the victim was stabbed," Neiman said.

Labels: Tony Lovato