Celebrity | Robert Halderman Dave Ready to Testify Against Blackmailer Letterman prepared to 'see case through,' lawyer says By Nick McMaster Posted Nov 10, 2009 2:49 PM CST Copied FILE - In a Oct. 2, 2009 pool file photo, Robert J. Halderman appears in State Supreme Court in New York. (AP Photo/Marc A. Hermann, Pool, File) David Letterman is ready to take the stand in order to convict accused extortionist Robert Halderman. Dave “is fully prepared to see this case through to the end, including testifying at trial," said lawyer Daniel Horwitz. He added that Halderman’s new claim—in a bid to get charges dropped—that he was merely trying to sell Letterman a screenplay amounted to "sophistry by Mr. Halderman's lawyer," reports the New York Post. Read These Next Multiple people have been shot at a Mormon church in Michigan. The gunman who killed 4 at a Michigan church was an ex-marine. The latest mass shooting in the US took place from a boat. 'We heard a big bang,' says churchgoer in Michigan Report an error