Quoted from jeffspinballpalace:
SEC says it is all gone. I think we’ve uncovered Robert’s special skill - spending other people’s money. [quoted image]
Sure he spent it all, but some of the stuff he spent it on can be recovered like the jewelry, real estate, office equipment, etc
But most of it evaporated in salaries to people to not build anything, probably fancy meals and travel, school tuition, sports tickets, etc.