Aziz Ojjeh is the son of late billionaire arms dealer Akram Ojjeh, and the brother of Mansour and Karim Ojjeh. He's a part-owner and Vice-President of TAG.
Ojjeh built this Lake Geneva mansion in 2010, he also owns another home nearby. This home was designed by Michael Graves Associates.
Update '16: seems to have torn it down again.
Links: www.zoominfo.com, www.michaelgraves.com