Federal investigators have begun their probe into what caused a plane crash that killed five Oklahoma men on Tuesday.
The victims are Tim Hartman, Rick Sandoval, Garth Baths, Lloyd Austin and Frank Pool Junior. Their plane went down Tuesday afternoon in a wooded area in northwestern Oklahoma City.
The National Transportation Safety Board was at the site on Wednesday going over the wreckage.
Investigators say there's no indication the pilot radioed for help. The plane was equipped with a cockpit voice recorder and investigators hope that will reveal some answers.
03/04/2008 No Survivors Found In OKC Plane Crash