Darrell Norman Williams told KTRK-TV he was riding his bike on Easter Sunday night in Wharton, Texas, when a group of boys approached him and began throwing objects at him."The dudes were just chucking bottles at me and rocks and stuff," Williams, who is mentally disabled, told the station.'They treated him like a piece of trash.'Williams told the station the group of boys soon knocked him to the ground.KTRK added that one of his attackers recor…