ATC audio captures crew's final mayday before Florida crash

Air traffic control recordings from Sunday's Learjet 60 crash in Greenacres, Florida, captured crew members shouting mayday as the jet plunged over 27,000 feet in under a minute. A crew member warned of 20,000 ft/min descent, while a female voice said 'We're going to die.' All nine aboard were killed; FAA and NTSB are investigating.