Photos by Nicole L. Browner Deafheaven vocalist George Clarke cultivated a peculiar psychopath/serial killer/hitman vibe onstage at Bottom of the Hill Monday night, wearing his trademark all-black outfit plus black gloves. He is one intense dude. His band's music is rife with long instrumental passages of experimental noise and psychedelic exploration, during which Clarke stalks the stage like he's possessed, glowers at the crowd, and makes what look like threatening gestures. Sometimes he appears to be gagging himself with his own fingers. But then the next minute he's screaming in a black metal screech so full of menace and foreboding [...]