The son of former Rep. Gary Condit (D-Calif.) said the Chandra Levy case has weighed heavily on his family and his father is working on a book about the case.

On ABC’s Good Morning America on Thursday, Chad Condit said his father told police “everything he knew about Chandra Levy,” with whom the then-congressman was having a sexual relationship. The media firestorm surrounding the affair was painful for his father, Chad Condit said.