Wilmington, Delaware (CNN) -- Police have found homicide victim John Wheeler's cell phone, according to a taxi driver who was interviewed by investigators this week. Athel Scott told CNN National Correspondent Susan Candiotti that police told him they found the cab driver's number in the phone of Wheeler, the former Pentagon official who was found dead in a Delaware landfill. He said investigators wanted to know how his number got there. Scott... says he told the police he didn't have any idea. "I never got a call from the man. I don't know him... He's never been in my cab....