1978 was a BUSY year for Dianne.

She was thinking of running for mayor of San Francisco.

So early in 1978 her 2nd husband is accused by 2 different neighbors of pedophilia.

On November 27, 1978 Harvey Milk the 1st openly gay politician on the SF city supervisory board & his gay lover the current mayor were murdered in a suspicious love triangle??

They were murdered by a member of the same board.

Who was the current President of the city board of supervisors?

Dianne Feinstein.

Do you believe in coincidences?

Maybe the deck was cleared for Feinstein.

Her husband died in April of the same year 1978 before the charges could be filed (of colo-rectal cancer?)

The mayor and his lover were assassinated by another board member who had just resigned 2 weeks earlier.

Who discovered the bodies at city hall?

Yep. DF.

She was elected president of the San Francisco Board of Supervisors in 1978 with initial opposition from Quentin Kopp.

On November 27, 1978, Moscone and supervisor Harvey Milk were assassinated by a rival politician, Dan White, who had resigned from the Board of Supervisors two weeks earlier. Feinstein was in City Hall at the time of the shootings and discovered Milk's body after hearing the shots. Later that day Feinstein announced the assassinations to the public.[17]

As President of the Board of Supervisors upon the death of Moscone, Feinstein succeeded to the mayoralty on December 4, 1978.