A Utah man with several drunk driving convictions has been sentenced to up to 15 years in prison for running over and killing a 4-year-old boy while driving drunk. Carl Wayne Johnson was sentenced after pleading guilty to automobile homicide involving DUI. Lesser charges were dismissed under a plea deal with prosecutors. He was behind the wheel of a GMC in November when he hit a mother and child in a crosswalk. Holden Curtis, 4, was killed and his mother suffered a broken femur, according to court records. The court ordered Johnson to serve an indeterminate sentence of one-to-fifteen years in prison.