Well, well, what was that about 'chickens coming home

to roost"?
Report: Police Union Accuses Ayers in Deadly 1970 San Francisco Bombing

“A San Francisco police union has accused former domestic terrorist William Ayers, co-founder of the Weather Underground, and his wife in a 1970 bombing that killed one sergeant, the San Francisco Chronicle reports.”

The union, in a letter to a conservative organization lobbying for arrests in the case, accused Ayers and wife Bernardine Dohrn of bombing a city police station.

On Feb. 16, 1970, a bomb placed on a window ledge of Park Station killed Sgt. Brian McDonnell and injured eight other officers, the Chronicle reported.
and
Police officers told to zip lips on bombing

“The San Francisco Police Officers Association’s leadership has been told to muzzle it after signing a letter accusing onetime Weather Underground radical Bill Ayers and his wife, Bernardine Dohrn, of being behind the nearly 40-year-old bombing at a San Francisco police station that killed a sergeant.

We hear that both U.S. Justice Department reps and Police Chief Heather Fong put in calls to the union to find out just what they were doing talking out of school about an active investigation that may be ready to make a move soon in the 1970 bombing at Park Station.

The word was, button your lips.

Police Officers Association President Gary Delagnes confirmed that his union got a call from federal investigators telling them they had an “active investigation and should not be commenting on the case.”
'Active investigation'. With Holder in charge? Probably an investigation of the SF cops for daring to bring this up.