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Robert F. Bukaty, Associated Press
State Police investigate an apartment complex where five members of a family, including three children, were found dead Sunday, July 27, 2014, in Saco, Maine. The bodies of a father, mother and children were found inside the apartment, state police spokesman Steve McCausland said.

SACO, Maine — Police in Maine say a suicidal man having financial problems killed his wife, three children and then himself.

Detectives say 33-year-old Joel Smith shot his family inside their apartment about 11:30 p.m. Saturday with a 12-gauge shotgun.

Twelve-year-old Jason Montez and 7-year-old Noah Montez were shot to death in their separate bedrooms. Thirty-five-year-old Heather Smith and 4-year-old Lily Smith were shot in the parents' bed. Joel Smith's body was found on the floor nearby, the gun by his side.

Police say no suicide note was found, but investigators say the wife had told a family friend the night of the shooting that Joel Smith recently had threatened suicide.

Sgt. Christopher Harriman, a state police detective, said the family had domestic issues and financial problems.