Carlo G. Tateo, a 31-year-old Oakland resident and Skyline High School physical education teacher and football coach, was fatally shot on June 18, 2017, at about 2 a.m. near 11th and Folsom Streets in San Francisco’s SoMa neighborhood. Tateo and friends were leaving a nightclub when two men began harassing women in their group; when Tateo intervened and asked them to stop, one of the suspects produced a firearm and shot him. He was taken to Zuckerberg San Francisco General Hospital, where he died.

The SFPD released surveillance footage showing three people—two men and one woman—walking along Folsom Street shortly before the shooting; they have been described as persons of interest. No arrests have been announced and the case remains open. Tateo’s death deeply affected his school community; students and staff held memorials and noted his mentorship and role as a father to his then 2-year-old daughter.

Does anyone have information about the three people seen on Folsom Street or about the events that night?