half past the hour, and more on the investigation into the german week airline disaster. a french prosecutor said the search teams recovered the flight data record, and the copilot researched suicide method and cockpit door security in the days before the jet went down. brianed a lexer in is with us, a former army pilot who worked on crash scene investigations, currently an aviation attorney and a commercially licensed pilot. planned it. >> sounding more and more like that. a lot of the evidence points in that direction. more and more the way it went down. >> what more can we learn from the data record center. >> normally that's the piece of evidence they wait to get the hand on. the most telling thing for investigators, giving information about what systems were on and off what the set examination air speeds were.