Man Who Trained Black Panthers on How To Fire Guns Was an FBI Informant

One of the Bay Area's most prominent radical activists of the era, Richard Masato Aoki was known as a fierce militant who touted his street-fighting abilities. He was a member of several radical groups before joining and arming the Panthers, whose members received international notoriety for brandishing weapons during patrols of the Oakland police and a protest at the state Capitol...

But unbeknownst to his fellow activists, Aoki had served as an FBI intelligence informant, covertly filing reports on a wide range of Bay Area political groups, according to the bureau agent who recruited him.

That agent, Burney Threadgill Jr., recalled that he approached Aoki in the late 1950s, about the time Aoki was graduating from Berkeley High School. He asked Aoki if he would join left-wing groups and report to the FBI.

"He was my informant. I developed him," Threadgill said in an interview. "He was one of the best sources we had."

The former agent said he asked Aoki how he felt about the Soviet Union, and the young man replied that he had no interest in communism.

"I said, 'Well, why don't you just go to some of the meetings and tell me who's there and what they talked about?' Very pleasant little guy. He always wore dark glasses," Threadgill recalled.