Venture Capitalist firm funded through Student Debt Collection?

Does anybody know about Rock Creek Capital LLC? They're a debt collection company and it looks like they use the funds to invest in start ups? The Debt Collection Branch: https://www.rockcreekcapitalllc.com/ The VC Branch: https://rockcreekcapllc.com/ The Global Investment Branch: https://therockcreekgroup.com/ Is this common?! It feels slimy.