A ten-year-old boy in Houston, Texas, repeatedly shot and killed his father after the man picked him up for a weekend visit. The boy used his mother's gun to fire through the back seat before getting out. He then continued to shoot. The boy's father was a doctor at the University of Texas Medical Branch. The boy lives with his mother and seven-year-old brother. Both were inside their home during the shooting. Authorities say they've been called to the home before in an ongoing family dispute. Police wouldn't discuss the boy's whereabouts or charges.