LA VISTA, Neb. (AP) — Authorities have released more information about a man found dead in eastern Nebraska last month.

The Sarpy County Attorney’s Office says 52-year-old Gaylord Surratt died of a self-inflicted gunshot wound to the head. His body was found on Christmas Eve.

Surratt’s mother, 79-year-old Rona Surratt, was found injured inside the home at the time. She suffered a skull fracture.

An investigation into Gaylord Surratt’s death and his mother’s injury shows the man shot his mother, who then fell and hit her head. Authorities say Gaylord Surratt then went into the living room and shot himself.

Sarpy County Chief Deputy Attorney Tricia Freeman says the case is closed and no criminal charges will be filed.