A 60-year-old plumbing business owner was shot dead in his Canarise home at East 86th Street and Avenue K after 1 a.m. today. Stevenson Blackett's body was found tied up in the basement; he had been sleeping there while his wife, three grandchildren, and father-in-law were sleeping on another level. The Daily News reports the killers "broke through the screen on a side door and took advantage of the victim's habit of leaving his keys in the lock of the second door to gain entry to the home... It wasn't clear if the men stole anything." His daughter added that her mother "saw the two guys trying to get out through the front door. That door sticks, so she saw the guys and they saw her. She's scared to death now."