Pulse was a gay bar, dance club, and nightclub in Orlando, Florida, founded in 2004 by Barbara Poma and Ron Legler. On June 12, 2016, the club was the scene of the second-worst mass shooting by a single gunman in U.S. history, and the deadliest terrorist attack on U.S. soil since the September 11 attacks. Forty-nine people were killed and 58 otheā¦Pulse was a gay bar, dance club, and nightclub in Orlando, Florida, founded in 2004 by Barbara Poma and Ron Legler. On June 12, 2016, the club was the scene of the second-worst mass shooting by a single gunman in U.S. history, and the deadliest terrorist attack on U.S. soil since the September 11 attacks. Forty-nine people were killed and 58 other people were injured.