A secret will.

In this exclusive clip from NBC's three-part true crime docu-series, The Widower, Colleen Beyer, the daughter of murder victim Sharon Causse reveals how her mother's widower Thomas Randolph reacted to Sharon's last will and testament. As Colleen recalls in The Widower, which has been brought to life by the producers of Dateline NBC, Thomas believed "he was in control of everything" thanks to one will in his possession.