An Americal Bulldog mauled a one-year-old to death as three of five people who tried to stop the attack were wounded by the dog. Tillamook County Sheriff's officials say the attack was in Nehalem, in the home of the grandparents of the boy. Deputies were dispatched to the home about 3:30 p.m. Sunday. The boy, Michael Naglee, had been taken by ambulance to Tillamook Hospital where he was pronounced dead. The dog, described by the sheriff's office as a 135-pound American Bulldog, was locked in a room next to the living room, highly agitated. Deputies tried several times to snare the dog and they ended up shooting it dead. The parents, James and Michelle Naglee, have owned the dog for several years. They were not present during the attack. Sheriff's officials say grandparents Robert and Betty Naglee were home and tried to stop the attack with three others.