LOS ANGELES (CBS) — Will a Southland mask maker finally help federal investigators capture one of California’s most infamous bank robbers?

Rusty Slusser of SPFX Masks said he will cooperate with agents from the Federal Bureau of Investigations in their efforts to find the serial robber whom officials suspect has carried out 16 heists across California since 2009.

Investigators said in November that the bandit is likely a younger male who may be using a latex mask to disguise his identity, and has since focused its efforts on SPFX Masks, which makes form-fitting silicone masks for the film and television industry.

While the realistic-looking masks sell for about $600 each, Slusser said he wants whoever is committing these robberies to stop using the product.

“I say please do not use our masks to commit crimes,” he said. “These are meant for novelty use only and people to have fun, fool their friends.”

The bandit has allegedly threatened to shoot bank tellers if they fail to meet his cash demands whenever he has struck over the last two and a half years, the FBI said.

A $20,000 reward has been offered for any information leading to his arrest and conviction.