the stories we're watching for half hour. germanwings flight 9525 say andreas lubitz appears to have hidden evidence of an illness from his employers. a german prosecutor confirming that investigators found a sick leave certificate that describes him as unfit to work for several days. which included the day of the crash. the airline said it never received such a notice. university of oklahoma president david boren just announced the school completed its investigation into a racist song chanted by several members of the fraternity. o o ou concluded it was learned on a leerdship cruise four years ago and the fraternity leadership does not appear to have been involved. surveillance video showed to the video, jenkinz was seen with