As the death toll soars to at least 124 killed, rescuers are working round the clock in a race to find survivors. Officials say a neighbor called 911 to report what they described as a man who seemed drunk threatening two people with a knife. The former coach, who's accused of gaining unauthorized access to victims' emails, social media and cloud storage accounts, has pleaded not guilty. The American Airlines flight was forced to turn around over the Atlantic after a passenger on board allegedly became disruptive and challenged flight attendants who told him to return to his seat. 

Aaron Katersky reports on the new video obtained by ABC News showing the doomed helicopter twisting above New York City before falling into the Hudson River, killing all six on board – including a family from Spain celebrating multiple birthdays; Trevor Ault has the latest on the small plane that crashed into a road in Boca Raton, Fla., erupting in fire and killing all three on board; Pierre Thomas has details on a federal immigration judge's ruling that former Columbia University grad student Mahmoud Khalil can be deported from the U.S.; and more on tonight's broadcast of World News Tonight with David Muir.