 An updated press release from the Utah Highway Patrol said the crash that killed the Hendrickson's happened Saturday afternoon at around 12.49 p.m. on SR 39 in Ogden Canyon. According to troopers, a mini bulldozer was on a tow truck when it broke free and slid off. This happened while the truck was rounding a right-hand curve. The bulldozer landed on the Hendrickson's pickup vehicle.