Heredity theory got a boost in March when CNN reported that Mr. Shirl Mitchell, 83, the father of accused Elizabeth Smart abductor Brian Mitchell, blamed himself for the way Brian turned out. Shirl said he showed Brian sexually explicit photos at age 7, which perhaps provoked Brian's arrest years later for indecently exposing himself to a 3-year-old girl. Shirl also described himself as a voyeur and the author of a two-thick-volume personal theology that is sexually explicit, dealing largely with diet and reproduction (and having nothing to do with Brian's own tract that authorities found when they arrested him for the abduction).











