The mayor of the city where a north Texas prosecutor and his wife were found killed in their house says the attack does not appear to have been random.
Kaufman County sheriff's Lt. Justin Lewis said Saturday that the bodies of Kaufman County District Attorney Mike McLelland and his wife, Cynthia, were found Saturday. Two months earlier, an assistant district attorney was gunned down near the office.
Police, FBI agents, Texas Rangers and deputies are investigating.
Forney Mayor Darren Rozell, whose suburban Dallas city is nearest the slaying scene, says the attack "appears to be a targeted act" and is urging the 40,000 residents in the area to be calm.
Authorities have also been trying to determine whether Hasse's killing was related to the murder of Tom Clements, Colorado's prison director, last month.
The Colorado man implicated in Clements' murder, Evan Ebel, was killed in a shootout with police in Texas two days after the killing.
Ballistics testing showed that the gun found on Ebel in the Texas shooting was the same one that was used to kill Clements. Police are trying to determine whether there are any other suspects who acted with Ebel in the murder.