One Last Chance: The Trial of Scott Peterson l 20/20 l PART 3

Investigators dig into Scott Peterson’s alibi, the family begins to search: Part 3 Modesto Police detective Allen Brocchini says Peterson was calm during questioning and that he reported no problems in the marriage. Family members became suspicious when Peterson evaded the media. WATCH THE FULL EPISODE OF 20/20: https://bit.ly/3weRyR9 #ABCNews #ABC2020 #Documentary