An inmate who shot and killed a kitchen worker at a Georgia prison before fatally shooting himself had a personal relationship with the woman, a prison official said Monday. Georgia Department of Corrections spokesperson Lori Benoit said in an email statement the shooting early Sunday at Smith State Prison was an isolated incident and the investigation was ongoing.

Jaydrekus Hart, who was facing at least another 19 years in Smith State Prison for voluntary manslaughter, gunned down kitchen worker Aureon Shavea Grace at around 4:30 a.m. Sunday, the state’s Department of Corrections said.

An inmate in a Georgia prison shot and killed a food service worker on Sunday before shooting and killing himself, authorities said. Jaydrekus Hart, 34, was serving a 20-year sentence at Smith State Prison for voluntary manslaughter and aggravated battery.

A Georgia prison inmate shot and killed an employee at Smith State Prison early Sunday morning before shooting himself, according to the Georgia Department of Corrections. The GDC said Jaydrekus Hart shot an Aramark food service employee before shooting himself.