SACRAMENTO, Calif. —

Ashkan Moghaddam has been identified as the worker who died after collapsing in a gas tank at a North Sacramento Costco gas station on Monday.

He was known as "Ash" by the Bay Area martial arts community, where he became a double black belt in Jiu-Jitsu and Judo.

The 37-year-old was also a husband and father to two teenage girls.

"He was a very genuine person, and the kind of guy who, if you ever need him, he would be there," said Calder Powers, the executive director of Guardian Gym.

"He carried a selflessness that was rare — he could change the entire energy of a room just by being in it," said Nwabueze Umeh, a former training partner.

Back in 2010, Ash began training in Jiu-Jitsu at Ralph Gracie Berkeley under Eduardo Fraga.

"I didn't even have a chance to

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