TUCSON, Ariz. -- A 34-year-old woman, her 21-year-old boyfriend and their infant son are dead in an apparent murder-suicide, according to the Tucson Police Department. Police discovered the bodies of Heather Marcucci, Jeremy DeBaker and 7-week-old Jase David DeBaker at their home near Speedway Boulevard and Harrison Road at about 1:30 a.m. Tuesday. Police said all three were found with obvious signs of gunshot trauma. Jeremy DeBaker's wound appeared to be self-inflicted, according to police. Officers also found two dogs shot to death on the property. The incident is being investigated as a double murder-suicide. Anyone with information is asked to call 911 or 88-CRIME.