Roberson was last seen on February 28, 2006, on Dickson Street in downtown Fayetteville, Arkansas, where he was celebrating Mardi Gras with friends. At some point during the evening, Roberson began feeling unwell. His friends advised him to return to their vehicle and wait for them there. However, when his friends arrived at the vehicle, Roberson was no longer there. He has not been seen or heard from since. At the time of his disappearance, he was scheduled to testify in a federal narcotics trial. His family reported that he had expressed concerns about his safety, stating, “if I don’t show up to court, you’re going to have to worry about me.” His subsequent disappearance has raised concerns that it may be related to his role as a witness in the trial. Roberson suffers from epilepsy and needs medication which he doesn't have with him.