Pulse Nightclub victim Amanda Grau reacts to Las Vegas massacre

The mass shooting in Las Vegas Sunday that killed dozens of concert-goers hit home for the survivor of the Pulse night club attack in Orlando and left others wondering what to do in an active shooter situation.

As of early Monday evening, 59 people were dead and more than 500 were injured after a gunman rained bullets down on a country music festival from his hotel room.

More than 2,000 miles away, Amanda Grau watched in horror from her Tampa condominium.

"It was devastating to see this on TV and see that something like this is happening again and I just can't fathom how this can happen again," Grau said. "It's just unbelievable. My heart's broken for the families and victims in Las Vegas we definitely can relate what they are going through."

Grau was shot four times when a shooter opened fire inside the Pulse night club 15 months ago.

She says Monday was an emotional day for her.

"I haven't been able to leave my house today because I've been nervous and scared with all the memories going on," she told FOX 13.

Grau now lives her everyday life differently; she always tries to come up with escape plan as soon as she arrives anywhere.

"I do look at all the exits. I make sure there are places where I can run out in case something like this happens again or anything for that matter. I also make sure that I go with a group of people," she said.

Hillsborough County Sheriff's Sgt. Roland Corrales said everyone should do what Grau does.

"It's situational awareness. You need to be aware of your environment. You need to be aware of your surroundings," he said. "When you're walking to the mall, when you're going to the convenience store, take a look around, see what's going on around you. If you're in a building, if you're in an outdoor venue, you've still got to know where the exits are if you have to get out of there in a hurry, know where things are. You have to have a plan in your mind before something happens, because if you wait until the situation starts to unfold to develop a plan, now it's too late."

Corrales said the phrase deputies teach civilians taking an active shooter training class is "run, hide, fight."

"If the shooter is way away from you and you can get away from him before you even come in contact with him, that's what you need to do, you need to run," he explained."If you're in an office and you have a door, close the door and hide. Stay there. Don't go out looking for the guy. If you come across somebody at a last resort, if it's your life at stake, that's where the fight comes in."

Corrales, however, said the Vegas situation was unique because the concert-goers seemingly had nowhere to go.

"He's going to be looking for targets that are moving that he's going to be able to focus on and be able to take the shots that he was taking," he said.

Corrales also expects law enforcement across the country to review what happened in Las Vegas and determine whether measures can be adjusted to make events like this safer.