By HENRY FREDEERICK
Headline Surfer
ORLANDO, Fla. -- Fifteen months after the Pulse nightclub massacre here in Orlando, a lone gunman overnight in Las Vegas opened fire from a 32nd floor balcony of the Mandalay Bay Resort and Casino into the crowd at an outdoor country music concert during a closing performance by Jason Aldean, killing at least 58 and injuring 500-plus others.
Clark County Sheriff Joe Lombardo said at least 50 people were killed in the shooting, including two off-duty cops. At least 100 concert including an LVMPD police officer, were among the dead. Injured people have been sent to the University Medical Center of Southern Nevada and Sunrise Hospital & Medical Center. At least 14 of the victims were reportedly in critical condition.