A couple marking their 50th anniversary were stabbed to death, and a suspect has been charged

BOSTON (AP) — A suspect was arrested Monday in the weekend killings of three people, a Boston-area husband and wife celebrating their 50th wedding anniversary and the woman’s 97-year-old mother, authorities said.

Middlesex District Attorney Marian Ryan said police took Christopher Ferguson into custody and charged him with killing 73-year-old Gilda “Jill” D’Amore after an autopsy revealed her death was a homicide. Ferguson also was charged with two counts of assault and battery with a dangerous weapon causing serious bodily injury, and burglary.

Additional charges were expected in the death of 74-year-old Bruno D’Amore and his mother-in-law, Lucia Arpino, after those autopsies are completed. Ferguson was expected to appear in court Tuesday or Wednesday. It wasn’t immediately clear if he had an attorney who could comment on his behalf.