In PS122’s downstairs theater—a small square of a stage surrounded by black bricks—a handsome, scruffy Parisian named Jonathan Capdeville sat on a wooden chair with a boombox to his left and a duffel bag to his right. For Gisèle Vienne’s Jerk, based on the short story by Dennis Cooper, Capdeville played David Brooks, an earnest prisoner traumatized by his teenage crimes (along with Wayne Henley, Brooks assisted the Texan serial killer Dean Corrl in raping, torturing, and murdering more than 20 boys in the mid-1970s). Watching Capdeville re-enact Corrl’s murders, which are coolly ironized by his sleeveless t-shirt (“Humanity is overrated”), you’d be forgiven for wanting a little breathing room.