They drowned

From the Associated Press

Two Endangered American Crocodiles Killed

Two endangered American crocodiles, once considered among the most imperiled species in the United States, were found shot to death near Key West, authorities said Tuesday. Both crocodiles, a 7-footer found Saturday and an 8-footer discovered Monday on Sugarloaf Key about 12 miles east of Key West, were shot between the eyes, authorities said.
A small caliber bullet was found lodged in one crocodile's head. The other also appeared to have a bullet wound between the eyes. Both animals will be examined for a cause of death.

Um ... How much is that gonna cost?