Former Texas A&M linebacker Antonio Armstrong and his wife Dawn passed away Friday after both being shot by the couple’s 16-year-old son.

Dawn Armstrong died on the scene, while Antonio Armstrong, who was shot in the head, was rushed to the hospital but did not survive. The couple were shot in their shared bedroom, according to CBS affiliate KBTX.

According to Houston police, the Armstrongs’ son has been charged with murder and no motive has yet been uncovered. The son is the one who called 911, according to police.

The couple had two other children who were home at the time of the shooting. Neither was injured.

Armstrong played at Texas A&M from 1991-94 and was named an AP All-American during the 1994 season.

“Antonio was a special young man. He was an All-American and an outstanding player, but he was an even better person. He was such a positive influence on his teammates. He always had a great big smile and was a joy to coach,” said R.C. Slocum, Armstrong’s coach at Texas A&M.