Chad Daybell murder trial: Melanie Gibb, Lori Vallow's former best friend, testifies
BOISE, Idaho - Melanie Gibb, the former best friend of Lori Vallow, took the stand on Thursday to testify at Chad Daybell's triple murder trial in Idaho. Daybell, the husband of the so-called "Doomsday Mom," is charged with killing Vallow…