PHOENIX (AP) -- A March 2 trial has been set for a 17-year-old Mesa boy charged with fatally beating his mother with a frying pan and a hammer during a dispute. The teen has pleaded not guilty to murder and other charges in the October 2013 death of his mother and a subsequent nonfatal attack on his stepfather. The boy was 16 at the time of his arrest. Authorities say the teen struck his mother with the pan and hammer, choked her, dragged her body to a backyard shed and cleaned up the scene. He is accused of later striking his stepfather with a frying pan and choking him. The stepfather managed to break free and call police.