I know. But I still don't understand how they can pick ONE gator and say "THAT'S the one!!!"
Yeah, they all look alike to me!
When you see an arm hanging out of its' mouth, you shout........."that's the one!!!" (sorry about being a smarta**, but I couldn't resist!)
They match gator teeth to the victim's bite marks. Also, gator's are territorial and tend to stay in certain areas - the trappers will hunt it down in the vicinity of the attack.