Jarret Crump, 21, was killed around 6:30 p.m. on busy Century Boulevard near Vermont Avenue.
From a distance, the video shows the gunman got out of a dark-colored SUV while stopped at a red traffic light, walked through lanes of traffic and shot at Crump's car. The gunman then got back into the SUV when the light turned green and drove away, along with the other cars.
"He didn't deserve this, and I'm reaching out so deeply. If you knew my pain...please...someone. There were too many cars on Century and Vermont to not see this," said Dara Davis-Oliver, Crump's mother.
Crump's female passenger was wounded in the shooting. She suffered non-life-threatening injuries.
"That person that did this, you should be man enough. Stand your ground, and come forward, and say that you did this," said Gregory Oliver, Crump's father.
Police say the other drivers didn't pull over to help or call 911.
"It's despicable, and the fact that not one of those people has come forward with any information, just even a phone call to 911," said LAPD Det. Charles Geiger.
According to detectives, Crump was not a gang member, and this may have been a case of mistaken identity.
Crump was a custodian with the LAUSD. His family says that he loved God, playing sports and riding his skateboard. He was a graduate of Crenshaw High School and a standout on the track team.
"It's just the pain is just indescribable, so if there's anyone that has any information, we're asking, begging for you to turn that information in," said Daphne Davis, Crump's aunt.
Anyone with information about the deadly shooting was asked to call the LAPD at 1-877-LAPD-24-7. Callers can remain anonymous.