Austrian climber on trial after girlfriend's death on Grossglockner

An experienced Austrian climber, Thomas Plamberger, is facing negligent manslaughter charges after his girlfriend Kerstin Gurtner froze to death on Austria's Grossglockner. Prosecutors allege nine planning and equipment mistakes and a delayed call for help; Plamberger reportedly left her near the summit, returning hours later to find her dead. He denies wrongdoing; a conviction could carry up to three years in prison as the trial begins.