He said: "I have tried to live a good life and I know hate is a very negative emotion but right now there are three people I hate. One is the planner, one is the person who pulled the trigger and one is the person who profited off of this and saw this as a career move.
"Every lyric to The Race is stained with my son's blood. Every 'free Tay-K' T-shirt that was ever sold has my son's blood on it."
On Monday, the prosecution presented the jury with the music video and lyrics to the song, saying, "I can't stomach it. It's in the lyrics. There's no better insight into this man's character than that video."
McIntyre is also facing a separate capital murder charge for allegedly shooting 23-year-old Mark Saldivar in 2017.