The penultimate entry of BAU Disassembled occurs as "Annihilator" sees Linda Barnes (Binda) go out into the field to mess things up for the gang. A house of roommates and their companions are slaughtered. Who did it? Who cares, really, as the case is a means to an end: showing Binda is incompetent. Ronnie and Jazz suffer through the incompetence for you.