WATCH LIVE: Chad Daybell Trial - DAY 21

WATCH LIVE: Chad Daybell Trial - DAY 21

Chad Daybell is charged with the deaths of his wife and his girlfriend’s two youngest children is set to begin in Idaho this week, serving as a second act in a bizarre case that has drawn worldwide attention and already resulted in a life sentence for the mother of the children.

Chad Daybell’s trial is expected to last up to 10 weeks, with jury selection scheduled to get underway in Boise on Monday. The 55-year-old self-published author is charged with three counts of first-degree murder for the deaths of Tammy Daybell, 7-year-old Joshua "JJ" Vallow, and JJ’s big sister, Tylee Ryan, who was last seen a few days before her 17th birthday.