Joshua "JJ" Vallow, 7, and Tylee Ryan, 17, have been missing since Sept. 23. Now, Arizona police have released the 911 call and bodycam footage of the altercation between JJ's father, Charles Vallow, and the children's uncle, Alex Cox, that led to Charles' death on July 11, 2019. It's just one of the deaths surrounding the family. The children's mother, Lori Daybell, married her new husband, Chad, just weeks after the death of Chad's wife. Police believe the children are in serious danger.