2-year-old, 3 others dead in murder-suicide

? A man shot his estranged wife, son and 2-year-old grandson to death and seriously wounded his pregnant daughter-in-law at their rural Louisiana home, then killed himself as police tried to pull over his car 20 minutes later, authorities said.

The pregnant woman later gave birth, about three months early, her father said.

The shootings late Saturday appeared to stem from an ongoing dispute between 50-year-old Dennis Carter Sr. and his wife, Donna Carter, who had a restraining order against him, Livingston Parish Sheriff’s Office Chief of Operations Perry Rushing said Sunday.

The father of the pregnant woman, Amber Carter, said the suspect had a history of abusing his estranged wife and recently tried to attack her with a machete.

Another 16-month-old boy was in the house during the shootings but was not hurt. The child was related to the Carters but Rushing was not sure how.