The parents of a Utah boy who was killed after a tombstone fell on him last year are suing the cemetery's association. According to a lawsuit filed in Utah's Third District Court on Tuesday, 4-year-old Carson Dean Cheney was posing for photos with family at Glenwood Cemetery in Park City on July 5, 2012, when a 4-foot-tall tombstone fell on him. The boy's father was taking photographs of another family and Carson was trying to make the children in front of the camera smile by hiding and popping out suddenly from behind the headstone.