Extremely tragic story coming out of Houston this evening. Former NFL player and Texas A&M football star Antonio Armstrong, and his wife of over 20 years Dawn, were each shot dead in their bedroom by their own 16-year-old son, while the entire family was home. Via NYDN:

Former NFL player Antonio Armstrong and his wife were fatally shot by their teenage son in the family’s Houston home early Friday, police said.

Armstrong’s wife, Dawn, was pronounced dead in their bedroom after their 16-year-old son dialed 911 around 1:30 a.m., police sources told KTRK-TV. Antonio Armstrong was taken to the hospital in critical condition, but multiple local media outlets reported that he had died later in the day.

Investigators who searched the southwest Houston home found a gun still smoking with a note next to it reading, “I’ve been watching you,” the TV station reported. Police arrested the 16-year-old boy. Sources close to the investigation said he was likely to be charged as an adult.

All three of the couple’s children — including a 20-year-old son and a teenage daughter — were in the Palmetto St. home at the time of the shooting. All were unharmed, Houston police homicide investigator Jimmy Dodson told the Houston Chronicle.