Our top crime stories for the week of January 9: An Arizona dentist’s “horrific” abuse of a daughter with special needs was seen on video, but went unreported for weeks; the arrest of a suspected trafficking suspect in Scottsdale; a man behind bars for the disappearance of Athena Brownfield; Lori Vallow, who is accused of killing her children in Idaho, said she had an alibi. and the jury’s decision not to indict a former Tucson officer.