In news from the financial world, a former top official at the massive private equity firm Blackstone Group has been arrested on criminal fraud charges for what U.S. prosecutors called a “brazen” scheme to defraud investors of up to $95 million. Andrew Caspersen was a partner at the Park Hill Group, which until recently was part of the Blackstone Group. His father, Finn M.W. Caspersen, committed suicide in 2009 while under federal investigation for allegedly concealing millions of dollars in a tax shelter.