NORTH HOLLYWOOD, Calif. -- A $50,000 reward was offered Thursday for help in solving the shooting death of a man who was gunned down in a car-to-car shooting on the Hollywood (101) Freeway in the North Hollywood area.

Bunthan Roeung, 26, was fatally shot about 2 a.m. March 1, according to the Los Angeles Police Department.

Roeung was a passenger in a car with some friends on Hollywood Boulevard, when they got into an argument with a group of men in a late-model gray or black Chevrolet Monte Carlo with red pinstripes and possible "F-1 motor sports" paper plates, said Los Angeles police Detective Tim Kirkpatrick.

During the dispute, someone in the assailants' car shouted, "Where's the party at?" Someone in the victims' car responded that they had just come from a club down the street, Kirkpatrick said.

At this point the occupants of the cars began insulting one another, Kirkpatrick said. The assailants followed the victims' car onto the northbound 101 Freeway and began to tailgate them.

One of the subjects opened fire and killed Roeung, police said.

The reward was offered by the Los Angeles City Council for information leading to the arrest and conviction of the people involved in the crime. Anyone knowing more information about the case was urged to call police at (818) 623-4045 or (877) 529-3855.