Californios partner Charlotte Randolph said it was around 7 a.m. on Friday when she found out Carlos Chan-Cocom, 33, the shy yet charming dishwasher she hired two years ago had been shot and killed near his home on Harrison Street in the Mission District, a half-mile away from where he’d just gotten off work.

“One of the dishwashers who knew him came and was screaming and crying and banging on my door,” she said. “I was in shock. I couldn’t believe it.”

According to the San Francisco Police Department, Chan-Cocom was a victim in a double shooting at around 2:32 a.m. Friday on the 2700 block of Harrison Street. He died at the scene. The second victim in the shooting was his brother, according to several people familiar with the situation. The brother was not killed in the shooting and remains in serious condition, according to friends of Carlos Chan-Cocom.

As word of Chan-Cocom’s death spread, Californios chef-partner Val Cantu decided to close the restaurant Friday so the staff could properly grieve. Even with service canceled, Cantu said some of the workers didn’t immediately go home. Nobody knew what to do next, he said.

“It took all of us a minute to sort of process it. It wasn’t like a car accident or a sickness you can wrap your head around easily,” he said. “We were just in disbelief for a while.”

One of the first decisions Cantu and Randolph made in the wake of the tragedy was to set up a GoFundMe campaign for Chan-Cocom’s family. An immigrant from Akil, in the Yucatan region of Mexico, Chan-Cocom routinely sent money home to relatives. The fundraiser, which had an initial goal of $5,000, has already accrued more than $14,900 in two days and is expected to be used to help his family with funeral arrangements and related matters.

Before arriving at Californios, Chan-Cocom worked four years at Commonwealth in San Francisco, another restaurant where he made lasting connections with people, including A.J. Krumholz, who still works at Commonwealth.

“I remember seeing a story about the shooting and seeing the stoop at his place. I used to hang out there,” said Krumholz, who described post-work nights on Harrison Street where Chan-Cocom would hold court among friends while passing around Tecates. It was a way to decompress and laugh as a group after a long shift, he said.

Those nights under the street lights were a microcosm of the way Chan-Cocom took a light-hearted approach to everything, Krumholz added, be it teaching co-workers how to speak Spanish, or helping to organize a soccer team of Commonwealth employees.

“The industry is a transient place so a lot of relationships you make, they don’t stick,” he said. “With Carlos, that was a relationship that would stick.”

Randolph said the Californios restaurant staff has been overwhelmed by the outpouring of support from the community, including from people outside of the Bay Area.

“Carlos was such a sweet individual. He was just fun,” she said. “Anybody that knew him is really feeling it right now.”

Justin Phillips is a San Francisco Chronicle staff writer. Email: jphillips@sfchronicle.com Twitter: @JustMrPhillips