"He would say that he wanted to be a police officer," said the boy's cousin, Abel Acosta.
Urbina was a seventh grader at Hurley Elementary School, and he liked to play video games and spend time with his cousins, brother and sister.
"He'd help me. We played outside. Everything. We were just like brothers," Acosta said.
Martin was going to sleep over at the home of an aunt and two of his cousins Friday night when a hit-and-run driver ended his dreams of ever being a police officer.
"The driver, he probably knew he hit somebody. Why would he just leave?" said Acosta
Witnesses say the boy was just starting to cross the street to his aunt's house when the car struck him. He was then thrown off the vehicle's windshield and landed underneath a parked car.
Martin died at Christ hospital less than one hour later.
Those who were at the scene say the car, which was driving northbound on California towards 59th Street, just kept going. Police were still looking for the driver and the vehicle Saturday night.
The vehicle is identified only as a four-door, gold-colored car. No make or model is available, but the car has a broken windshield from the accident.
Those who live in the area say, unfortunately, the street is very busy; speeding by passing vehicles is a fact of life.
"It's always a problem. It's every day, an everyday occurrence. Some people, they just don't respect the signs," said resident Modesto Classen.