GREENVILLE, S.C. (AP) — A man and a woman have been charged with killing a woman they were living with in South Carolina, tying her up with Christmas lights and beating her, authorities said.

The body of Carolyn Jackson was found in a shallow grave about 5 miles (8 kilometers) from her Honea Path home on March 24, Greenville County deputies said.

Jackson was attacked by her roommates, Amanda Marie Scott and Denardis Jamont Kilgo on March 14. They tied her up with Christmas lights and tape and wrapped in her a way that restricted her breathing, according to arrest warrants.

Jackson died after being beaten, deputies said.

Investigators said they haven't determined why the pair killed Jackson.

Scott, 36, and Kilgo, 39, are charged with murder and kidnapping and remain in jail. Court records did not list lawyers for them.