Will 'new' witnesses help Scott Peterson get a new trial?

Published: Sept. 1, 2017, 4:58 p.m.

b'An A&E docu-series suggests investigators ignored several witnesses who claimed to have seen Laci Peterson walking her dog at a time that would have excluded Scott Peterson as the killer. Nancy Grace examines the claim with forensics anthropologist Dr. Heather Walsh-Haney, psychologist Dr. Bethany Marshall and RadarOnline reporter Alexis Tereszcuk.'