Gambino mobster willie marshall (Potenza)only a couple of higher ups in family new what he was doing but Feds were all over him and communication got cut off and john jr gotti panic.. Rumor has it they are half brothers john gotti went with willie mom and she got pregnant and only greg depalma new and kept it sworn secret with john senior this was back in 60s they met out,one night stand..well don't know how true but willie looks just like john gotti.. And was gonna be proposed.. Jr and willie did have a falling out wonder what about??