The chase began in Hillside and ended when the car hit Martin's Mustang at Aldine Street and Bragaw Avenue in Newark. He was pronounced dead at the scene.
The three suspects in the car were all caught, according to the state Attorney General, which is investigating the incident.
Colleagues, friends and family mourned "Marty Mar" and "Big O."
"Omar was a genuinely great person and a true friend," Vonetta Wallace wrote.
"In my 5 months working at Northern Martin always steered me in the right direction going to miss you....rest easy big dawg," another mourner wrote.
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