Thahn Nguyen, 25, was killed in San Francisco on June 18, 2016. His death remains unsolved and is classified as a cold case. The San Francisco Police Department has offered a reward in his case to encourage anyone with information to come forward.

Nguyen’s killing occurred during a period when the city was experiencing a rise in homicides, and his case is one of several that underscored concerns about safety and violence at that time. Investigators have cited a lack of new evidence or willing witnesses as reasons the case is not actively being investigated.

If anyone knew Thahn, saw activity in his neighborhood on June 18, 2016, or has information that could help, please contact the San Francisco Police Department.