The FBI has opened a criminal investigation into a condolence letter written by Jackie Kennedy on the day after Robert Kennedy died, the Dallas Morning News reports. Sent to Ethel Kennedy, the two-page letter soon disappeared—and turned up 10 years ago in the home of the Kennedy family plumber. The plumber's son ended up selling it to a dealer for $6,000.
The letter changed hands three more times, for prices up to $30,000, until a buyer consigned it for sale at an auction house—where it sat for 3 years until the FBI seized it with a search warrant. Now buyers and sellers of the letter are deflecting blame, and Max Kennedy, Robert and Ethel's son, wants a prosecution if laws were in fact broken. "The efficient running of society requires that criminals be prosecuted," he said.