Interesting theories all-around...I'm not sure Butch Blasi would have much to offer in terms of intel. He was really only a driver...never part of the inner circle.

Same with Solano...not sure how much intel he could offer as he was mainly just boss of the Northside. When did Roemer retire? Solano was working for Ross Prio and then Dom DiBella up through the late 70s.

Another theory could be Jonny Roselli or one of the three doms.