This has been a long time coming (via SFgate.com):

The arrest and charging of a group of former black militants Tuesday for the 1971 slaying of a San Francisco police sergeant ends decades of frustration for investigators who say the men were soldiers in a five-year war on law enforcement in the late 1960s and early 1970s.

The accused — all reputed former members of the radical militant group known as the Black Liberation Army — carried out a “terror and chaos” campaign aimed at “assassinating law enforcement officers” that began in 1968 and ended in 1973, Deputy Police Chief Morris Tabak said.

Tabak said one of the casualties was Sgt. John Young, slain on Aug. 29, 1971, whose killing was the focus of the arrests and the charges Tuesday. He was killed when at least three men burst into Ingleside police station and one fired a shotgun through an opening in a bulletproof glass window.

“After three decades, it’s a real victory for law enforcement that these folks will finally have to answer for their actions,” Tabak said in announcing charges against nine men, eight of whom are in custody.

Authorities arrested two San Francisco men, Richard Brown, 65, a community activist, and Richard O’Neal, 57, who worked as a custodian at San Francisco’s City Hall.

Also arrested were Francisco “Cisco” Torres, 58, in Queens, N.Y., Ray Boudreaux, 64, an electrician for Los Angeles County from Altadena, Henry Watson Jones, 71, also of Altadena, and Harold Taylor, 58, of Panama City, Fla.

Two other men charged in the case already are incarcerated in New York. Herman Bell, 59, and Anthony Bottom, 55, were convicted of the May 21, 1971, killings of two police officers in New York.

One man who was still being sought is Ronald Stanley Bridgeforth, 62. Authorities believe he might have fled the country.