Alt-musical crew The Used has a scary issue with an ex-part who's threatening to get exact retribution for his firing by killing himself at one of their shows ... according to the band. The rockers from Utah just filed to get a restraining request against their former guitarist, Justin Shekoski, who was fired a few months ago finished "artistic differences." According to docs, obtained by TMZ, Shekoski has threatened brutality against his ex-bandmates ... and even threatened to "f**king hang [him]self in the middle of a show."
They say he's fired off some intensely threatening writings, as well. In one, he allegedly said retaliation "is the best way to get equity." In another he says, "those f**ks ruined my life and stole all of my creative work." The Used were granted the security ... which requires Shekoski to stay 100 yards away from all individuals from the gathering, and any place they work. That includes any settings where the gathering's performing. And now ... something from their happier days.