Hours of body camera footage documenting the police response to the massacre at the gay nightclub Pulse were released on Wednesday.
reports the 11 hours of footage released included scenes of chaos as officers responded to the mass shooting started by gunman Omar Mateen during Pulse's "Latin Night" on June 12, 2016.
As hundreds tried to escape from the club, 49 people were killed and more than 68 were injured.
On a special report tonight on World News Tonight with David Muir
, ABC News' Brian Ross will go over the footage and talk about how the night unfolded with Orlando Police Chief John Mina and other first responders.
The footage reportedly sheds a better light on the police response during the three-hour standoff with Mateen that started at 2:02 a.m. and ended shortly after 5 a.m. when officers fatally shot him.
The program will air on World News Tonight
at 6:30 p.m. and again on Nightline
tonight at 12:30 a.m. Both programs are on ABC.