I suspect we'll learn the Blackhawk was at fault. The plane was on a routine flight plan, and was on approach only 2300ft from the runway. The Blackhawk was behind, and below the jet based on video and air traffic control calls. It was warned about the jet 30 seconds before impact, but never responded. It just flew straight into the rear of the aircraft. It's gonna be a bitch to recover the data recorders because of the temperatures and the fact that they're on the bottom of the Potomac River. And I don't expect there will be any survivors.