The question was "likely to reoffend". Somehow you reduced this to "present a physical danger". SBF is not accused of physically endangering people, so the term "reoffend" is not a reference to physical violence. It's a reference to defrauding people (the thing he's accused of right now). Your parent already posted examples like Billy McFarland, who immediately go on to defraud more people when they are let out on the street. This very obviously is a danger with SBF as well.
