Arrest in UnitedHealthcare CEO murder. Drama at a Georgia sentencing. And Josh Mankiewicz on "Deadly Mirage."

Listen to this week's episode of the Dateline: True Crime Weekly podcast with Andrea Canning. What we know about the man suspected of gunning down UnitedHealthcare CEO Brian Thompson last week in Manhattan. At her sentencing, a Georgia grandmother convicted of murder points the finger at her own son. And, the latest on Lori Vallow Daybell’s legal woes.