A Missouri woman who escaped captivity from a wooden box three weeks ago was found dead in a home on Thursday, along with her teenage son, and police are searching for the man suspected both of locking her up and killing her.

Officers found Sandra Kay Sutton, 46, and son Zachary Wade Sutton, 17, shot dead in a house in Clinton, Missouri, at about 4:20 a.m., according to a news release from the Clinton Police Department.

The bodies were found when family members returned to the house after work, police said.