More detail has been released concerning the tragic accident in Oregon involving a vintage M18 tank destroyer which killed two men. Authorities have released the names of the victims, Steven Todd Preston, 51, and Austin Tyler Lee, 22. Preston was the owner of the M18 and also the board director and convention chairman of the Military Vehicle Preservation Association. The cause of the explosion is not known although it is being investigated by the Oregon State Police and the ATF. It is being reported that one of the victims was alive when first responders arrived at the scene, but then died shortly after. Authorities may be helped in their investigation by the fact that a film crew was present at the time of the explosion. They were capturing video of the tank destroyer firing rounds which was to be used as part of a display of the tank destroyer in a future exhibit.