Tearful Russian billionaire who spent $2 billion on art tells jurors Sotheby’s cheated him

A Russian billionaire who accused Sotheby’s of teaming up with a Swiss art dealer to cheat him of tens of millions of dollars became tearful while testifying in court and calling for more transparency in the art market

​ABC News: US A Russian billionaire who accused Sotheby’s of teaming up with a Swiss art dealer to cheat him of tens of millions of dollars became tearful while testifying in court and calling for more transparency in the art market