Nikki and the team discover that R&B singer, Diana Cooper, had a fight with Maddie the day of the murder.

In her book "The Light of the Common Day," Diana Cooper reminisces back to the day of September 1, 1939.

"Missed Once" (2000-1) by Diana Cooper is a Rube Goldbergian freestanding relief wall that gives new depth to electronic bewilderment.

Oliver Anderson dedicated Random Rendezvous, published in 1955, to "Diana Cooper and Jenny Day".

A painting by Diana Cooper comes out from the wall to form a fragile 3-D cubicle festooned with pink pompoms.

He was extraordinarily generous, often by stealth, and he retained the devotion of friends like Nancy Mitford and Diana Cooper throughout his life.

Well, I had lunch today with Diana Cooper - do you know Diana Cooper?

Diana Cooper (1981)

In her third solo gallery show, Diana Cooper essentially dismantles her meandering process-oriented combinations of drawing, installation and sculpture.

Here a dinner conversation with General de Gaulle flows "like glue," in the words of Diana Cooper.