Jason Aldean is responding after what’s been called the worst mass shooting in U.S. history took place in Las Vegas during his concert at Mandalay Bay. <br />Aldean’s concert goers underwent two hours of gunfire, killing at least 50 people and injuring at least 200. <br />Aldean posted on Instagram, saying “tonight has been beyond horrific. I still don’t know what to say but I wanted to let everyone know that me and my crew are safe.” <br />Of course, Aldean’s main concern was for those killed and injured during his performance. <br />He says, “My thoughts and prayers go out to everyone involved tonight. It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night.” <br />According to People magazine, the suspect opened fire from the 32nd floor of the Mandalay Bay casino and was eventually killed by police. <br />