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. A man who caused a fiery crash on the 10 freeway tried to flee the scene. KTLA The suspect is said to have been weaving through traffic when he allegedly clipped the back of a blue Prius. KTLA 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. Construction worker Jacob Deegan was working to save the driver when the suspect tried to flee. KTLA He is believed to have sprinted to stop him, tackling him and holding him there until California Highway Police units arrived.…