Disney has announced they will be adding signs around their beaches and waterways to warn guests about alligators and they have closed all beaches on their Florida properties as they conduct a review of their protocols. A medical examiner has ruled the cause of death for 2-year-old Lane Graves as drowning and traumatic injuries due to the alligator attack at the Grand Floridian Resort lagoon in Orlando, Florida. NBC’s Gabe Gutierrez reports for TODAY.