Four-decade-old St. Patrick’s Day murder still unsolved [Video]

Marlene Hayes, a 38-year-old mother, wasn’t feeling well on Tuesday, March 17, 1981.

She and her husband owned a business in the local Bel Air area, and that day she decided she’d leave early.

“She came home, parked her car in the driveway, entered the house,” says Capt. Andrew Lane of the Harford County Sheriff’s Office.

Police believe she was attacked almost immediately upon entering the home in the 600 block of Ponderosa Drive.

“It appears from the crime scene that she was attacked almost as soon as she entered the house. She may have made it several feet into the house, but not far,” Lane says.

Marlene’s 16-year-old son got home from Bel Air High School around 3 p.m. and found his mother on the floor.

Later that day, police say, Marlene’s stolen car was found a few miles away at William S. James Elementary School, and a suspect …