The wife of convicted killer AJ Armstrong openly wept in court Wednesday as the father of her child was sentenced to life in prison for the 2016 murders of his two parents. The son of former NFL player Antonio Armstrong was found guilty of murdering his parents as a 16-year-old in 2016. He will have the possibility of parole after 40 years. Antonio Armstrong Jr. - AJ - heard the guilty verdict on Wednesday following two previous mistrials. The Houston jury deliberated for about 10 hours after hearing more than 40 hours of testimony from 31 witnesses spanning 11 days during the capital murder trial. Because he was a minor at the time of the murders, he was not facing the possibility of the death penalty. During the seven year gap between the murders and today's guilty verdict, Armstrong married Kate Ober - his high school girlfriend with whom he shares a son. She was comforted by her husband's attorneys in court as Armstrong was led away following sentencing. Armstrong Sr. was a former linebacker for the Miami Dolphins and San Francisco 49ers. Defense attorney Rick Detoto said of his client: 'He's devastated. He's one of the strongest young men I've ever known. His family is amazing, and obviously they are devastated right now.'