The first video arrives by email. An unidentifed man. A naked woman. Her scream caught in a freeze-frame. The producers of TV’s Crime Seen! can’t believe what they’re witnessing — an all-out sadist “auditioning” for a starring role in reality television. And if he doesn’t get it, he’ll kill again. To meet the demented demands of the self-proclaimed “Don Juan,” former sheriff and TV host J.C. Harrow has no choice but to spotlight him along with another ruthless maniac who has captivated millions of viewers. Now two killers are locked in a bloodthirsty competition. For fame. For notoriety. For victims