Rohrer didn't call for help. He and his family tailed the shark, unsure if they would be able to make a difference.
"I'm thinking there's no way I'm gonna get through that rope — it's so fat," Rohrer told Hawaii News Now. "Then [my wife] Kapua was saying, 'Well, you should try!" But I was thinking if I get close to that animal and touch it, I don't want to startle the animal. I don't want to stress the animal out. I don't want to make it bolt."
But in the end, he decided to make an attempt — and as footage from the last moments of the rescue shows, it worked.