Although the original thread's in the archive, I was able to find the info.
Making good on a promise for a brother:
In 1970 the group issued a "Declaration of a State of War" against the United States government, using for the first time its new name, the "Weather Underground Organization" (WUO), adopting fake identities, and pursuing covert activities only. These initially included preparations for a bombing of a U.S. military non-commissioned officers' dance at Fort Dix, New Jersey in what Brian Flanagan said had been intended to be "the most horrific hit the United States government had ever suffered on its territory".
On February 21, 1970, gasoline-filled molotov cocktails were thrown at the home of New York State Supreme Court Justice Murtagh, who was presiding over the trial of the so-called "Panther 21," members of the Black Panther Party over a plot to bomb New York landmarks and department stores. One bottle full of gasoline had broken against the front steps, and flames scorched the overhanging wooden frame until its contents burnt out. In addition windows were broken, and another molotov cocktail caused paint charring on a car. Painted in red on the sidewalk in front of his house was "FREE THE PANTHER 21" and "THE VIET CONG HAVE WON". The same night, molotov cocktails were thrown at a police car in Manhattan and two military recruiting stations in Brooklyn. The son of Justice Murtagh claims that the Weatherman were responsible for the attempted arson, based on a letter promising more bombings sent by Bernadine Dohrn to the Associated Press in late November, 1970, although that letter is generally assumed to refer to an October bombing of a Queens courthouse. While nobody ever claimed responsibility, or was caught or tried, for the arson attempt, a number of historians state that the arson attempt was enacted by the Weathermen but was considered a failure.
The San Francisco Police Department Park Station bombing occured on February 16, 1970, when a pipe bomb filled with shrapnel detonated on the ledge of a window at the San Francisco Police Department's Golden Gate Park station. It was never solved. Brian V. McDonnell, a police sergeant, was fatally wounded in its blast; Robert Fogarty, another police officer, was severely wounded in his face and legs and was partially blinded.
In addition to the above, any time someone mentions Ayers, please post this photo and bio:
Sergeant Brian V. McDonnell
San Francisco Police Department
End of Watch: Wednesday, February 18, 1970
Tour of Duty: 20 years
Badge Number: 1001
Cause of Death: Bomb
Date of Incident: Monday, February 16, 1970
Weapon Used: Explosives; Bomb
Suspect Info: Not available
Sergeant Brian McDonnell succumbed to wounds sustained two days earlier when a bomb exploded in the Park Police Station.
Although Sergeant McDonnell's murder was never solved, it is believed the bomb was set by members of the domestic terrorist group Weather Underground. Members of the group shot and killed Sergeant Edward O'Grady and Officer Waverly Brown, of the Nyack, New York, Police Department on October 20, 1981.
Sergeant McDonnell had served with the San Francisco Police Department for 20 years. He is survived by his son, daughter, parents, brother, and sister. His father was a former San Francisco Police sergeant.
Sergeant McDonnell's uncle, Sergeant Joseph Lacey, was shot and killed in the line of duty on December 30, 1956, while serving with the San Francisco Police Department.