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Former Texas A&M linebacker Antonio Armstrong is in critical condition in a Houston hospital after authorities said he and his wife were shot by their 16 year old son on Friday morning. Armstrong’s wife, Dawn, was dead in her bedroom when police arrived.

ABC News 13 reported that the couple’s daughter — the suspect’s sister — was home at the time of the shooting

Armstrong played at A&M from 1991-1995, and he was named an AP All-American his senior year after recording 62 tackles and 17 tackles for loss on the season. He had a memorable performance in a Cotton Bowl loss to Notre Dame to close his college career, as he recorded three sacks in that game.

Armstrong was taken in the sixth round of the 1995 NFL Draft, and he played several seasons in the NFL and CFL before retiring. He has been working as a coach and a fitness instructor since. According to 24/7 Sports, Armstrong had also paid regular visits with the Texas A&M football as a motivational speaker.

The 16 year old son was reportedly taken into custody and has been charged with murder. The same report also notes that there seems to be no history of violence in the home, and that a motive is not currently known.