PHOENIX (AP) — Authorities have released details from a weekend shooting attack that left four family members and two dogs dead at a central Phoenix townhouse before the gunman turned the weapon on himself.
Michael Guzzo, 56, killed his next door neighbors in a confrontation Saturday that may have been touched off by loud barking, police said Sunday.
Phoenix police Sgt. Tommy Thompson said there is "some indication that perhaps that was a problem." But he added that because of the deaths, a motive may never be known.
The victims have been identified as Bruce Moore, 66; his daughter, Renee Moore, 36; her husband, who took his wife's name, Michael Moore, 42; and Renee's son, Shannon Moore, 17.
After the killings, Guzzo shot at another townhouse before returning to his unit and killing himself, police said.
Police said they found a pump shotgun, apparently the weapon used in the killings, next to his body. Thompson said there was no indication he had a violent past.
A neighbor said Guzzo usually kept to himself.
"I've seen him every morning — come in quiet every morning," Donald McKenzie told Phoenix television station KSAZ-TV (http://bit.ly/1a8DGFH ). "Never would expect him to be the guy who did this at all."