(KRON) — Contra Costa District Attorney Diana Becton, on Thursday, named three of the suspects arrested in connection to the $1 million robbery at the City Center Bishop Ranch shopping center in San Ramon Monday.

A “mob” of 30 people were involved in the robbery at Heller Jewelers, police said. Brandishing guns and pickaxes, the masked suspects allegedly burst into the jeweler around 2 p.m. and began smashing display cases and snatching jewelry.

Six adults and one child have been arrested in the case. Of those suspects, 31-year-old Michael Lamont Ray, Jr. of San Francisco, 19-year-old Ira Raheem Austin of San Francisco and 27-year-old Jimmy Mack Ray of Vallejo now face serious felony charges for “orchestrating a brazen armed robbery,” the Contra Costa District Attorney’s Office said.

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