Really?This incident sounds like the latter, but the croc is described as being very large and has now attacked a human and should be killed as it now sees humans as a food source and given the opportunity, it will kill again. Croc and gator attacks are not the same as a shark mistaking a swimmer for food.
How do you know?
".....sees humans as a food source....." always sees it as a food source if it can get closer!