Daughter's Boyfriend Killed Mom, Mom's Boyfriend And Self, Police Say

WOONSOCKET, RI — A Woonsocket man killed his girlfriend's mother, the mother's boyfriend and himself after the daughter told her mother he sexually had assaulted her, police said.

Officers investigating a report of shots fired at a house on Rathbun Street near Privilege Street about 6:45 p.m. Monday found two men and a woman dead in the home.

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The three were identified as Kimberly Pieranunzi, 40, Donald Roderick, 45, and Sean Rivera, 24.

"Kimberly lived in the apartment with her boyfriend, Donald, her (19-year-old) daughter and Sean, the daughter’s boyfriend," Woonsocket Deputy Police Chief Adam T. Remick said in an email.

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"The investigation has revealed that during this evening, Sean and his girlfriend were discussing their strained relationship when Sean pulled a gun and demanded sexual relations," Remick said.

The daughter "reported being sexually assaulted by Sean" and fled to her mother's bedroom, Remick said.

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"Sean was able to gain access to Kimberly’s bedroom and shot Kimberly multiple times," Remick said. "Sean’s girlfriend was able to flee the building when Donald happened to come home to the apartment from work. Sean shot Donald and ultimately shot himself."

The daughter called the police from a business, he said.

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"A .380 caliber firearm was seized from Sean’s possession and later determined to be reported stolen from Maine," Remick said.

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