It's been nearly five years since real estate heir Robert Durst was charged for the  murder of his college best friend. Susan Berman was found shot execution-style in the back of the head in her Los Angeles home 20 years ago. But this is not the first murder connected to the billionaire. His first wife, Kathleen McCormack Durst, vanished in upstate New York in 1982. She has never been found. Durst was also acquitted in the 2001 murder and dismemberment of his Texas neighbor, 71-year-old Morris Black. Durst's trial has just begun.   Joining Nancy Grace today: Wendy Patrick - California prosecutor, author “Red Flags” www.wendypatrickphd.com Cloyd Steiger - 36 years Seattle Police Department, 22 years Homicide detective, Author "Seattles Forgotten Serial Killer-Gary Gene Grant" www.cloydsteiger.com Joe Scott Morgan - Professor of Forensics Jacksonville State University, Author,"Blood Beneath My Feet" Dr Bethany Marshall - Psychoanalyst, Beverly Hills, www.drbethanymarshall.com Levi Page - Investigative reporter Crime Online