95-year-old billionaire casino mogul missing, held hostage Billionarie Kirk Kerkorian. A 95-YEAR-OLD US casino mogul has been missing for months and is being held hostage by his lawyers, his ex-wife claims. Kirk Kerkorian, who made his $2.9 billion fortune as the "godfather" of legendary Las Vegas gaming hotels like Caesar's Palace and MGM Grand, has not been seen in public since June 2012. Former tennis star, Lisa Bonder Kerkorian, 47, claims the legal advisers managing his company, Tracinda Corp, are holding her ailing former spouse captive and helpless. The couple famously divorced after an acrimonious split following their 28-day marriage in 1999. Ms Kerkorian has filed a legal claim that Kerkorian has been kept from his daughter for the past five years. Kira, now 15-years-old, is not Kerkorian's biological daughter, and is in fact the child of Bonder's ex-boyfriend, millionaire Steve Bing. Representatives of Tracinda Corporation have responded to Bonder's claims about Kerkorian being held hostage, saying "there are no facts to support Bonder's claims and therefore no merit whatsoever to the allegations she has made." The New York Post's Page Six reports that Bonder may be trying to squeeze money from Kerkorian before his child support obligations to the teenager expire. "Even though she's not his, Kirk loves this girl," an insider told Page Six. He gives her $100,000 a month. What his ex is worried about is what happens when the child support stops. TMZ reported that staff at Kerkorian's favourite restaurant had not seen the billionaire in months.