(Milwaukie, OR)  --  Milwaukie police say the death of a local man in his home is being investigated as a homicide.  Authorities say 57-year-old Phillip Gatto was found in his residence Monday night in the 95-hundred block of Southeast 42nd Avenue.  There's no word yet on how Gatto died.  The Clackamas County Major Crimes unit is helping with the investigation.