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Obviously, really frustrating for the investigators and the families. for contacts, lets go live to washington, d.c., criminal profiler, pat brawn, who can give us insight into this. thanks for being with is. >> good morning, lynn. >> also the author of the profiler my life hunting serial kills are and psychopaths. this is your background, if there is any reason to believe that there was some criminality involves. officials are following leads. we dont know what those are. what could they be. >>...