This is the horrifying moment a 17-year-old opened fire on a Halloween crowd in Orlando and killed two, before being taken down by a hero cop.

Jaylen Dwayne Edgar was arrested after he killed two people and injured six others in downtown Orlando early on Friday, officials said.

Shocking footage released by police shows the suspect in a yellow shirt calmly walking through the crowd of Halloween revelers before he turns around and fires his gun. Crowds flee in terror as the muzzle flash lights up the dark street.

The suspect is seen running with the crowd towards two police cars, getting meshed with the innocent bystanders that were fleeing in panic.

As he pulls out the gun again, a hero cop spots him and quickly tackles him to the ground, disarming him before other officers assist in the arrest.

The suspect could be seen protesting his innocence and appeared to be trying to blend in with other bystanders fleeing for their lives.

Officers responded to a report of shots fired in the city’s downtown shortly after 1am.

A second shooting minutes later happened within a short distance of officers and they quickly made an arrest, the city’s police Chief Eric Smith said during a briefing Friday morning.

The six wounded, who range in age from 19 to 39, were transported to a hospital for treatment and were in stable condition, Smith said.