An 11-foot alligator that attacked a teenage swimmer is pulled from the water after it was killed on Monday evening, July 9, 2012, in the Caloosahatchee River near Moore Haven, Fla., in this image taken from video. (AP Photo/WBBH-TV)

An 11-foot alligator that attacked a teenage swimmer is pulled from the water after it was killed on Monday evening, July 9, 2012, in the Caloosahatchee River near Moore Haven, Fla., in this image taken from video. (AP Photo/WBBH-TV)