This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.Diemel went missing July 21 after they failed to board their flight home from Kansas City at 1:50 p.m. Their rental truck was found a few hours later in a commuter lot in Holt, Missouri. Since then, officials have confirmed searches taking place in both Caldwell and Clinton Counties. Officials have not let FOX4 see the search warrants, but they have said warrants have been filed. Lisa Diemel, Nick Diemel’s wife, said they talked on the phone at 8:55 a.m. the morning of his disappearance. She said he told him they were going to someone’s house who had been raising cattle for the brothers, who own a livestock company called Diemel’s Livestock LLC. That was the last she heard from him. She said investigators told her not to say who the brothers were visiting that day. Officials have not given any suspects names. The search is still ongoing.