Manuel Valladares, a 35-year-old resident of San Francisco, was fatally shot near Union Square at the intersection of Mason and Geary streets on January 14, 2018, about 4:41 a.m. He was taken to San Francisco General Hospital but died of his injuries. Authorities described his death as the city’s third homicide that year, coming after two fatal stabbings earlier that week.

The San Francisco Police Department opened an investigation and has identified a male suspect but has not released a detailed description. No arrests have been announced; investigators say a lack of witnesses and concrete evidence has hindered progress. Valladares’ death occurred during a violent weekend that also produced multiple nonfatal shootings elsewhere in the city.

Anyone who knew Manuel, was in the Union Square area that morning, or has information about the shooting is asked to come forward.