18-Year-Old Charged With Fatally Stabbing Mother in Brockton

A neighbor says they called 911 when they saw the 18-year-old man leave the home covered in blood

A Massachusetts teen has been arrested after allegedly stabbing his mother to death Wednesday at their Brockton home, according to the Plymouth County District Attorney's Office.

Authorities said Frantz Polynice, 18, is charged with one count each of homicide and assault and battery with a dangerous weapon in the death of his mother, 44-year-old Mania Meneide.

The district attorney's office said police responded to the family's home on Merritt Avenue at about 1 p.m. for a report of a person stabbed.

Police and emergency responders found Meneide suffering from multiple stab wounds. Meneide was taken to Brockton Hospital, where she was pronounced dead.

Neighbor Maryanne Montiero said Polynice's grandmother came running for help and had called 911 when she saw the teenager emerge from the home covered in blood.

"When I saw him come towards us at house, I could tell something was instantly wrong. I just pulled her back out of house," Montiero recalled.

Montiero said she made the grandmother leave until first responders arrived.

Investigators said they recovered a knife at the scene and interviewed Polynice before charging him in connection with the stabbing.

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