CPR Effort Fails to Save Florida Hiker Killed by 13-Foot Alligator

31-year-old Brittany Clark was killed after a 13-foot alligator grabbed her arm in the Econlockhatchee River; her boyfriend Chance Allison wrestled them to shore and performed CPR as a 911 call captured the horror. The medical examiner cited multiple blunt-force injuries to the upper extremities as the cause of death, and wildlife officials have killed two alligators in connection with the investigation; authorities said Clark did not provoke the attack and warned about the dangers of Florida waters.