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

An Ivy League tech graduate is in custody for the fatal shooting of the CEO of UnitedHealthcare in Midtown Manhattan last week. At her sentencing, a Georgia grandmother convicted of murder points the finger at her own son. And Josh Mankiewicz stops by to talk about his latest podcast, "Deadly Mirage." 

Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com