Skydiving Deaths: Helmet Cam Shows Instructor Was Hero

An Icelandic skydiving instructor and his student died in a mysterious accident.
1:47 | 03/27/13

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Transcript for Skydiving Deaths: Helmet Cam Shows Instructor Was Hero
place, thanks. To the new details we mentioned now emerging in that florida skydiving tragedy. A veteran instructor struggling to save his student in midair. Their chutes not opening and then a dramatic 911 call. Abc's steve osunsami has that story for us. 911, what's your emergency? Reporter: On the ground where they had been waiting for the two sky divers for more than an hour this was the call for help. I have two missing sky divers that have landed in the swamp somewhere. Reporter: A florida medical examiner says they landed hard, the experienced instructor and his younger student both vacationing from iceland died from injuries after falling more than 13,000 feet saturday. This morning police are holding on to video recorded on one of their helmets. The sheriff says it's hard to watch. I was called out that night and I was out on the scene where the bodies were recovered. Seeing what transpired prior to was very difficult. Reporter: Investigators say the two jumps separately and after watching that video, they now firmly believe that 41-year-old instructor orvar arnarson was desperately trying to save the life of 25-year-old porterson. He was attempting to stabilize the student and to reach for the student's rip cord. He was a hero. He died a hero. Reporter: All this happening while they're falling at 120 miles an hour trying to open a student's parachute before opening his own. Their backup chutes did open but not in time. Now the faa is igating. Arnainstructor, was an experienced jumper on his personal web page as he posted videos of his perfect landings. The man who gave his own life to save another. For "good morning america," steve osunsami, abc news, atlanta.

This transcript has been automatically generated and may not be 100% accurate.

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