Investigators said one other night, the suspects hooked a nurse shark and left the line tangled in the dock without freeing the shark.

"It's a real chore to get into a shark's mouth and get the hooks out. We were able to do that, but it could have been a lot worse if it had been left a long time," said Mark Perry with Florida Oceanographic.

The state attorney's office is still deciding if the teens will be arrested and charged.

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