SEDALIA, Mo. (AP) — SWAT teams searched three Sedalia homes but didn’t find a man suspected of killing his former girlfriend and her 17-year-old son in a western Missouri community about 45 miles away.

Assistant Clinton Police Chief Sonny Lynch says a car used by 46-year-old victim Sandra Sutton was found early Thursday outside a hospital in Sedalia. Police believe 47-year-old James Barton Horn Junior left the vehicle there.

Lynch says surveillance video shows a man believed to be Horn walking away from the car and toward nearby houses at 4:15 a.m.

One of the houses was where Horn allegedly kept Sutton confined in a wooden box, letting her out only when he was home.

Sutton and her son, Zachary Wade Sutton, were found shot to death early Thursday in a relative’s Clinton home.