Bo Gritz - I was there at Ruby Ridge.
A local news reporter and one of his friends were the ones who gave the best account of the helicopter they saw flying over the house with the bucket extended, but Bo does mention it in his second letter.
Claire Wolfe's "You will pay for this some day", is also very good.
So the helicopter was real but it was a newsman and a logger who witnessed the helicopter and "[w]hen seen, the pilot flew the chopper back to the main valley base."
There was "a helicopter with a fuel cell hover[ing] over the cabin with the threat of burning them out."
I wonder what the pilot was thinking? "It all counts toward 30." I bet.