Lieutenant Horatio Caine:  Alexx ?
Dr. Alexx Woods: Blood pool 's dry at the edges . Puts TOD around _ eleven _ .
Lieutenant Horatio Caine: So her head is literally hanging by a thread of skin .
Dr. Alexx Woods: Single - edged knife . Mom was attacked from behind , sliced left to right . No indication of resistance .
Lieutenant Horatio Caine: She was probably asleep .
Dr. Alexx Woods: He transected all the neck muscles down to the second cervical axis .
Lieutenant Horatio Caine: He decapitated her , Alexx .
Dr. Alexx Woods: Guy 's a monster . Or he does n't know his own strength .
Lieutenant Horatio Caine: Well he 's about ... to know ours .