"Arizona gunman kills neighbors, dogs" Associated Press, October 28, 2013
PHOENIX — Authorities released details Sunday from a weekend shooting 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 deadly confrontation Saturday that may have been touched off by loud barking, police said.
Phoenix police Sergeant Tommy Thompson said there is ‘‘some indication that perhaps that was a problem.’’ He added, because of the deaths, a motive may never be known....
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