More details into the death of Martin Short's late daughter, Katherine Hartley Short, have been revealed. TMZ reported in an article published on Thursday, February 26, that Katherine was found "behind a locked door and with a note nearby." Us Weekly confirmed on Tuesday, February 24, that Katherine had died at age 42. Her death has since been ruled a suicide. "It is with profound grief that we confirm the passing of Katherine Hartley Short. The Short family is devastated by this loss and asks for privacy at this time," Martin's rep confirmed in a statement to Us.