SAN FRANCISCO (KRON) -- The San Francisco Police Department is offering a $50,000 reward for information that leads to an arrest and conviction in a 2012 drive-by homicide.

Ronald Monzon was shot and killed on Friday, March 9, 2012, at 7:22 p.m. in the city's Mission District as he was driving his vehicle north on Shotwell Street from 24th Street, said SFPD.

There have been no suspects identified or charged in the case.

"A red SUV was seen fleeing the area after the shooting," said police in a news release.

The motive and circumstances behind the incident are not known.

Anyone with information on this case is urged to contact SFPD Homicide Sergeant Scott Warnke at (415) 553-9249 or call the police dispatch center at (415) 553-1071. Anonymous tips can be texted to TIP411, starting the

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