Transcript for Orlando Nightclub Massacre, a Familiar Nightmare
Orlando, Newtown, and San Bernardino, not that long ago. Many lives were lost. Reporter: Word of today's massacre reaching this theater, where "Newtown" screening went ahead. But first, a moment to acknowledge Orlando's heartbreak. Is it sort of traumatizing all over again? Without a doubt. I see it coming through on my news feed, I stop. I know I'm not going to be able to handle it. I have to walk away for a minute. Reporter: These two women, all two familiar with the nightmare. This woman's son was killed, and this teacher kept students safe in a coat room. This is insane that this club even exists. The road they have ahead of them, it's almost impossible to imagine. You're never quite whole again. I learned a lot from previous shooting families, columbine, Aurora, it's not going to be easy, but I'm going to find a way. Reporter: Was it a PTSD moment today? Absolutely. It pulls the skin off of old wounds, and brings you to a place you don't want to go back to. Reporter: This doctor said that in his experience, emts, doctors in Orlando may be traumatized after the fact. We're trained to compartmentalize, it's not until you drive home, when it sets in. Reporter: He dealt with that personal trauma by taking action, appearing before congress to fight against the availability of assault weapons. Are you more angry or hurt? People need to feel the pain today, grieve for Orlando. Tomorrow, they need to get up and do something. So many families that want to make sure their loved ones have not been forgotten. Elizabeth, I want to let our viewers at home know, the teams have arrived here, beginning to take the 50 bodies out of the nightclub. That's 50 families there, like those we just heard from in Debra's report. 50 names now beginning the process of realizing they've lost a loved one too. And with 50 victims, the coroner has said he doesn't have the space, asking for help in the community. Obviously, there are lots of
This transcript has been automatically generated and may not be 100% accurate.