Bystanders nabbed a fleeing man whose aggressive driving allegedly caused a fatal crash on Los Angeles’ 10 Freeway on Monday.

The suspect is said to have weaved through traffic, crossing four lanes until he clipped the back of a blue Toyota Prius, witnesses said.

The collision was enough to make the Prius collide with the center median along with two other vehicles and erupt in a massive fireball.

The LAFD responded at 7:16 p.m. and ruled the Prius driver, who had been in the car as it went up in flames, deceased upon arrival.

Witnesses described the fire to KTLA as “giant” and “very, very hot.” A second driver was ruled to be in critical condition and needed to be hospitalized.

But the aggressive third driver allegedly took off as witnesses desperately tried to save the Prius driver by smashing out her window with a golf club.

The construction worker trying to save the driver had to stop his attempted heroics when he noticed the fleeing man.

He is believed to have sprinted to stop him, tackling him and holding him there until California Highway Police units arrived.

“I did tackle him and I got him on the ground and I just asked him, ‘Hey, man, sit right here,’” construction worker Jacob Deegan told KTLA. “He kept trying to run off.”

Other witnesses of the crash helped Deegan keep the man in their custody until CHP officers arrived to arrest him. It’s unclear what crime they charged the alleged aggressive driver with.

Witness Eve Porinchak pointed out at least one positive from the frightening crash, which claimed the life of an unidentified woman.

“Regardless of what the rest of the world says about us, we’re good people,” she said. “L.A. has so many good people who will help strangers. Thank goodness for good people.”

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