Columbus police say a 4-year-old boy was killed this morning when he was run over by the pickup truck in which he was playing. Police say the unnamed boy somehow shifted the vehicle into gear, and it rolled over him after he fell or jumped out of the truck parked at a home in the 12 hundred block of Worthington Heights Boulevard on the Northwest side. Police say his brother pulled into a driveway and went inside the home to get ready for work, but no keys were in the vehicle at the time.