here's nbc's sarah dallof. >> back up. crossfire. >> reporter: raw fear. >> keep walking, keep walking! >> reporter: in the early morning hours of june 12th, 2016. >> hey, i got someone shot back here, i need some help. >> reporter: as recorded by law enforcement body cameras. they show a nightclub turned nightmare. as officers climbed through a shattered window near the front door. and shout commands at gunman omar mateen, who'd taken survivors hostage. >> reporter: outside, people hurried to safety, as law enforcement assisted an injured officer whose kevlar helmet was hit with a bullet. >> i got you, i got you. >> reporter: after a three-hour stand-off, mateen was killed. >> terrorism in orlando. islamic state. >> reporter: the owners of pulse nightclub now plan to turn the site into a permanent memorial, a tribute to the 49 victims and the first responders who rushed into the line of fire. sarah dallof, nbc news. >>> and the news continues now with jim and wendy. >> news4 at 5:00 starts now. >> right now, we're working for you on the day's big stories

here's a report by nbc's sarah dallof. >> units have just arrived. >> back up.ut for crossfire. >> stay at that door for cover. >> reporter: raw fear. and heartbreak. >> keep walking, keep walking, keep walking. >> reporter: in the early morning hours of june 12th, 2016. >> i got someone shot back here. i need some help. >> reporter: as recorded by law enforcement body cameras. they show a nightclub through a shattered window near the front door. and shout commands at gunman omar mateen, who had taken survivors hostage. >> keep going, keep going. >> reporter: outside, people hurried to safety as law enforcement assisted an injured officer whose kevlar helmet was hit with a bullet. >> i got you, i got you. >> reporter: after a three-hour stand-off, mateen was killed. >> terrorism in orlando. >> reporter: the owners of pulse nightclub now plan to turn the site into a permanent memorial, a tribute to the 49 victims and the first responders who rushed into the line of fire. sarah dallof, nbc news. >>> an investigation is under way about a missing veteran's body, dis