US prosecutor slain at home with wife A Texas prosecutor who was found dead with his wife in their home had apparently armed himself after one of his assistant prosecutors was gunned down two months ago. In an interview less than two weeks ago, district attorney Mike McLelland said he carried a gun everywhere he went and took extra care when answering the door at his home. "I'm ahead of everybody else because, basically, I'm a soldier," the 23-year Army veteran said . On Saturday, McLelland, and his wife, Cynthia Woodward McLelland, were found shot to death in their rural home just outside the town of Forney, about 30 kilometres from Dallas. While investigators gave no motive for the killings, Forney Mayor Darren Rozell said: "It appears this was not a random act." The slayings came less than two weeks after Colorado's prison chief was shot to death at his front door, apparently by a white supremacist ex-convict, and two months after Kaufman County assistant district attorney Mark Hasse was killed in a parking lot a block from his courthouse office. No arrests have been made in Hasse's slaying on January 31. McLelland, 63, is the 13th prosecutor killed in the US since the National Association of District Attorneys began keeping count in the 1960s. Sheriff David Byrnes would not give details on Sunday of how the killings unfolded and said there was nothing to indicate for certain whether the district attorney's slaying was connected to Hasse's. Colorado's corrections director, Tom Clements, was killed on March 19 when he answered the doorbell at his home outside Colorado Springs. Evan Spencer Ebel, a former Colorado inmate and white supremacist who authorities suspect shot Clements, died in a shootout with Texas deputies two days later about 160km from Kaufman. El Paso County, Colorado, sheriff's spokesman Sgt Joe Roybal said on Sunday that investigators had found no evidence so far connecting the Texas killings to the Colorado case, but added: "We're examining all possibilities." McLelland, in an Associated Press interview shortly after the Colorado slaying, raised the possibility that Hasse was gunned down by a white supremacist gang. The weekend slayings raised concerns for prosecutors across Texas, and some were taking extra security precautions. Byrnes said security would be increased at the courthouse in Kaufman but declined to say if or how other prosecutors in McLelland's office would be protected. McLelland, elected district attorney in 2010, said his office had prosecuted several cases against racist gangs, who have a strong presence around Kaufman County, a mostly rural area dotted with subdivisions, with a population of about 104,000. "We put some real dents in the Aryan Brotherhood around here in the past year," McLelland said. For about a month after Hasse's slaying, sheriff's deputies were parked in the district attorney's driveway, said Sam Rosander, a McLelland neighbour. The FBI and the Texas Rangers joined the investigation into the McLellands' deaths. McLelland and his wife, Cynthia, 65, were the parents of two daughters and three sons. One son is a police officer in Dallas. The couple had moved into the home a few years ago, Rozell said.