CADIZ, Ky. (AP) — Kentucky State Police have released the identities of four people, including a Louisiana woman, who were found shot to death in a western Kentucky home. KATC-TV in Lafayette reports one of the victims, Emily K. Champion, 31, was an Acadiana equine veterinarian.

Police say two of the victims were Champion’s parents, 62-year-old Lindsey Champion and 60-year-old Joy A. Champion. Police told media the fourth person, 22-year-old Vito Y. Riservato, is suspected of shooting the others.

Emily K. Champion was a veterinarian at Baronne Equine Veterinary Clinic in Sunset, and was a track veterinarian at Delta Downs in Vinton, KATC-TV reported.

The shootings took place Sunday at the Champions’ home in Cadiz, which is located about 40 miles northwest of Clarksville, Tennessee. The motive remains under investigation.

Kentucky State Trooper Jay Thomas says police are still investigating the relationship between Riservato and the Champions. They think the suspect might have known the family briefly before the shootings.

Autopsies were set for Monday in at the medical examiner’s office in Louisville.