The top law enforcement officer in one Texas county and his wife were found shot to death in their home on Saturday.

Kaufman County Sheriff’s Department Lt. Justin Lewis confirmed to KTVT that Kaufman County District Attorney Mike McLelland and Cynthia McLelland had been killed.

An assault rifle had been used to shoot the district attorney multiple times, KTVT reported. His wife was only shot once. Their home reportedly showed no signs of forced entry.

Authorities are investigating if the case is related to the January slaying of Kaufman County Assistant District Attorney Mark Hasse, according to Kaufman Police Department Chief Chris Aulbaugh.

Mike McLelland and Cynthia McLelland had two daughters and three sons. One son works as a police officer in Dallas.

Watch this video from KTVT, broadcast March 30, 2013.