Triple-murder trial of Chad Daybell begins. The case involves unusual claims of a doomsday plot [Video]

Opening statements are expected Wednesday in the trial of an Idaho man charged with killing his wife and his then-girlfriend’s two youngest children in an unusual case rooted in extremist religious beliefs.Chad Daybell, 55, is facing charges of first degree murder, insurance fraud, and conspiracy to commit murder and grand theft in connection with the deaths of Tammy Daybell, 7-year-old Joshua “JJ” Vallow and 16-year-old Tylee Ryan. Last year, their mother, Lori Vallow Daybell, received a life sentence without parole for the killings.Prosecutors say the couple justified the three killings with doomsday beliefs, part of an elaborate scheme to eliminate any obstacles to their relationship and to obtain money from survivor benefits and life insurance. Vallow Daybell referred to her two youngest kids as zombies, one friend testified during her trial.Chad Daybell was a member of the Church of Jesus Christ of Latter-day Saints and self-published fiction loosely based on …