Mario Engoglia, 54, and Susan Triezenberg, 57, of Granville, died at 5:50 p.m. Tuesday at Kindred Hospital, 225 Edward St. in Sycamore. Police said at least one death was the result of a self-inflicted gunshot wound. Sycamore Police Chief Don Thomas said the two people in the room were “significant others,” according to a Daily Chronicle article. There were no witnesses to the shootings and police said there is no danger to the public.