A biracial ex-baseball player who allegedly “hated that he was Black” was found guilty for a triple homicide that included the death of his Black father, ABC 7 reported.

On September 17, 2015, Brandon Willie Martin — who played for the Tampa Bay Rays — went to Corona, California where he attacked and instantly killed his father, Michael Martin, with a baseball bat. He went on to kill Barry Swanson — an ADT alarm installer who was setting up a security system intended to keep him out of his father’s home. Ricky Lee Anderson — his father’s brother-in-law — was also beat to death for attempting to stop the attack.

Martin was spotted driving Swanson’s pickup truck the following morning, but when officers attempted to detain him, he ran out and escaped into a woman’s house. He was arrested, and the woman — who was home at the time — was not harmed.

During a court hearing last week, the Riverside jury convicted the former minor league baseball player of three counts of first-degree murder, auto theft, evading arrest, obstructing a peace officer and injuring a police canine. He could face the death penalty, which his attorney T. Edward Welbourn opposes as he struggles with mental illness.

Per court documents, Martin reportedly “hated that he was Black” and had a “racially charged” dislike for his father who he often used racial slurs against. In 2014, he got away with punching his father multiple times in his head because the officer didn’t want an arrest to taint his career. In another instance, the ex-baseball player choked his mother and held scissors against her neck.

Martin was previously admitted to the Department of Mental Health’s emergency treatment facility after threatening his father. The victims’ families are now suing Riverside County for negligence, claiming he was released too soon.