Drunk woman woman charged with fatally running over her mother

An Arkansas woman with a blood-alcohol level more than three times the legal limit for driving backed over her mother and left the scene even though loved ones yelled, "You killed grandma," police said.

Lisa Ann Casteel, 40, was charged with negligent homicide and driving while intoxicated.

Sheriff's deputies were told by witnesses that Casteel backed over her mother, Mary Jane Donn, 56, as Donn sat in a plastic chair in the driveway of a home where relatives had gathered, according to an arrest affidavit.

Casteel's sister, Michelle, told the deputies that Casteel thought her Chevrolet Blazer was in drive, not reverse, according to the affidavit.

Witness Michael Carey, who was named in the affidavit, said the group was at his house. He said people in the yard yelled "You killed grandma" at Casteel. Casteel got out of her SUV, checked on her mother, said she was breathing and drove off, the affidavit said. Donn was taken to a hospital and pronounced dead.

Casteel later returned to the house but was blocked by deputies when she tried to turn around and leave at the sight of their cruisers. The affidavit said a breath test showed Casteel had a blood-alcohol content of 0.243 percent.