Coss Marte went from running a multi-million dollar drug operation to sitting in solitary confinement. And it’s here, alone in his cell, where he gets the idea for his next business: a fitness company inspired by his time behind bars. But Coss quickly learns that building a legal business comes with its own set of challenges—one being that pitching your company on stage to a bunch of investors requires a slightly different approach to selling an eight-ball outside a busy New York club.Building a startup is a tough and uncertain endeavor for any founder. But for one with a criminal history, the journey can be far more complicated.