Son of ex-NFL player found guilty of killing parents, sentenced to life in prison

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The son of a former NFL player was found guilty of capital murder in the killing of his parents when he was 16, a Texas grand jury determined on Wednesday.

Antonio "A.J." Armstrong Jr. was sentenced to life in prison without parole after 40 years, according to FOX 26 Houston.

Armstrong was charged in 2016 with the murders of Antonio and Dawn Armstrong. Prosecutors said Armstrong shot and killed his parents inside their Bellaire townhome. Dawn Armstrong was pronounced dead at the scene and Antonio Armstrong died in a hospital with a gunshot wound to the head.

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Antonio Armstrong, Jr., stands outside the courtroom following the day's testimony in his trial on Monday, April 22, 2019, in Houston. (Brett Comer/Houston Chronicle via Getty Images)

There were two mistrials before the conviction this week. The jury was hung in a deadlock in 2019, and in 2022, they could not agree on a verdict.

Authorities at the time said the son’s story about a masked intruder did not add up, and an investigation failed to find any evidence of a forced entry. A portion of the 2019 trial focused on A.J. Armstrong’s call to 911, saying "it’s all my fault," according to FOX 26 Houston.

Prosecutors argued in the first trial that Armstrong put a pillow over his parents’ faces and shot them both – a claim Armstrong denied. Prosecutors also said that before the murders took place, Armstrong fired a practice shot into his bedroom floor and also claimed Armstrong tried to light the house on fire and researched how to rig a vehicle in order for it to explode when it turns on.

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