Eugene was last seen at his home in rural Fremont County, CO, on June 21, 2004. His wife, Lynn, stated he left the home angrily after an argument. She said that Eugene had smashed his computer and cut up his credit cards before leaving the house, and left his cell phone behind. She believed he was planning to go to Mexico or South America to "disappear. " She stated that when he left, he was driving his red 2000 Ford F-150 pickup truck and that he had allegedly said he would send the truck back to her later. She stated that the truck reappeared in the driveway days later, three miles inside the locked gate to the property.