FBI investigating assault, vehicle theft near Four Corners Monument The assailants attacked the truck's owner, causing serious injuries, and could be connected to other recent crimes in the Four Corners region, the FBI said. Author: Jennifer Campbell-Hicks Updated: 12:17 PM MDT June 1, 2021 MONTEZUMA COUNTY, Colo. — The FBI was asking for the public's help in solving an assault and vehicle theft in late April near the Four Corners Monument. On April 29, assailants attacked an individual and stole their pickup truck near the entrance of the Weeminuche Construction Authority gravel pit off U.S. 160, on the Ute Mountain Ute Reservation. The pickup's owner, an enrolled member of the Navajo Nation, suffered a hemorrhage inside the head and facial lacerations that resulted in significant blood loss, according to the FBI Denver Bureau.