A few dozen UPS employees are gathering here for the prayer service pic.twitter.com/Iy9ST16hBn— Melanie Woodrow (@MelanieWoodrow) June 19, 2017
Three drivers lost their lives when a co-worker opened fire during a company meeting last Wednesday.
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Prayer service at UPS in SF pic.twitter.com/4w9lNCvVY6— Melanie Woodrow (@MelanieWoodrow) June 19, 2017
Many people have left tributes for Mike Lefiti, Benson Louie, and Wayne Chan.
RELATED: Family mourns Hercules father killed in UPS shooting
The gunman also died after shooting himself.
Monday's service was planned for noon-outside the UPS building on San Bruno Avenue near 17th Street.
The group organizing it conducts prayer services for all murder victims in the city.
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Click here for more information about the shooting.