With the investigation in its early stages, New York City Transit President Richard Davey, MTA Chief Safety and Security Officer Patrick Warren, NYC Transit Senior Vice President of Subways Demetrius Crichlow, and Carl Hamann, Chief of NYC Transit Office of System Safety, visit the scene of a fatal incident where a rider died early Thursday morning after becoming caught in a gap between a Q train and the northbound platform at the Avenue M subway station in Brooklyn.