ERLANGER, Ky. (AP) -- The fatal crash of a Comair regional jet Sunday morning dealt an emotional blow to a commuter airline trying to emerge from bankruptcy. "These are tough things and it's very difficult," Comair president Don Bornhorst said at a briefing in a hotel near Comair headquarters in northern Kentucky. Choking up at times, Bornhorst said he was "emotionally devastated" and said he's certain all of Comair's 6,400 employees share those feelings. Bornhorst, a 15-year aviation industry veteran, pledged that the carrier would do all it could to help with the investigation of the crash while also keeping...