I remmy reading the Mobster library stories and did read Rothstein' story and few other articles out of different site....

According to word on street, Rothstein knew when and how to bet and his legend grew. Durin the 1919 Series, Rothstein did bet but many people used his name as advantage to make money. things went sour and people still thought Rothstein was responsible for it when he gambled.

there was a black man, i think, he was responsible for killin Rothstein over gamblin dispute. Rothstein' legend grew after he was dead but the truth is with him. i believe Rothstein did bet but never made those transactions with many people.