There are calls for a full-blown investigation following a Turn To Tara report that the lead prosecutor in the Robert Durst murder trial vacationed at the Hamptons home of Durst's widow.

The Turn To Tara team just obtained a copy of a letter sent to the L.A. district attorney from the lawyer representing the the family of Kathie McCormack - Durst's still-missing first wife.

Bob Abrams referred to several news stories of what he described as "Lewin's playdate and multi-night sleepover." Abrams accused the star prosecutor of engaging in improper and unethical conduct, something that John Lewin denied in his deposition.