Scumbag sets his mother on fire

Argument between a man and his mother escalates into a terrible act. He pours a flammable substance on her and sets her on fire. The entire incident takes place on the street in front of several witnesses, who react quickly and try to extinguish the woman. However, he still continues to pour the flammable substance on her. The motive of their dispute is not known, as well as the woman’s current medical condition.