Getting a bandleader to release Johnny for $1,000 with a gun to his head in the early forties and compromising a powerful United States Senator are two entirely different things. As it happens the story about the bandleader became common knowledge among show biz people ...Woltz knew the story... and I assume this word was spread by someone with ties to the Corleone family to enhance their reputation. We never hear back fom thi bandleader unlike Geary who remained in the public eye and may have been trying to get out from under Michael's thumb at the Senate hearing.