are okay as the investigation gets started here. that plane actually touched down at about the time that it was scheduled to. however, the landing when you look at these pictures, it was anything but routine because the crew aboard american flight 4817 initially reported that emergency or at least declared that emergency after several people aboard that plane noticed a fellow passenger acting strangely, erratic is the way they described it. as a result, they reached out to authorities on the ground that scrambled first responders ahead of that plane s safe landing and according to republic airways, which owns and on rates the flight flying for american, apparently moved from that very active runway over to a taxiway and that s when that emergency evacuation was initiated. the goal would be to have authorities board the plane, make sure there was no threat and at this point authorities don t believe there was an actual threat as they begin to investigate. as we see these powerful images
the obtained by tmz, shows the gunman pulling out a handgun and calmly firing in the florida airport. reporter: carol, new details surrounding the investigation emerging over the weekend, including that horrific surveillance video that shows the moments just as this attack was starting. also, incredible tales of heroism, including one where a 70-year-old electrician threw himself over a passenger acting as a human body shield. she described him as her guardian angel. also tales of terror from the attack victims. take a listen. she was standing right next to me. in the baggage claim? in the baggage claim.
base to accompany this flight for the final descent into denver, the last 40 miles into denver after reports of a passenger acting suspiciously onboard the plane. there have been initial reports from unnamed sources that there may have been a question of the man having explosives onboard the plane. the possibility of the man trying to ignite some sort of explosive device onboard after having spent time in the bathroom. there were air marshals on the plane. they did subdue the man. there was no explosion. we no of know injuries. we are trying to confirm if there was an actual incendiary device. we do not have confirmation of that. we are going to pete williams, nbc s justice correspondent who joins us from washington with the latest. pete, thanks. reporter: okay, what we know, rachel. this flight took off about 5:19