From the article...
"Marquez told the TV station he has no doubt that hate was what fueled this.
“Why else would you pour boiling water on somebody?” he asked.
Now, Tolbert and Gooden are in the agonizing process of recovering from their second and third degree burns. Tolbert spent 10 days in the hospital undergoing surgery to repair the skin on his back. Gooden was hospitalized for five weeks, according to Project Q Atlanta."