A new documentary about O.J. Simpson's slain wife, Nicole Brown Simpson, features never-before-seen home movies of Nicole as a youngster. Her three sisters and closest friends are coming forward to share their stories in the new Lifetime documentary, “The Life and Murder of Nicole Brown Simpson.” Denise, Nicole's eldest sister, delivered a memorable testimony during Simpson's murder trial in 1995. The documentary also depicts the deep attraction Nicole and O. J. once had for each other.