Ill try to explain how NO Ramsey DNA was found on the victim.
First, we need to understand that they only look for DNA in incriminating locations. Ramsey DNA could have been all over, everywhere else and we would never know it.
Second, we need to realize that although DNA transfer can and often does occur, it does not necessarily occur. A person can touch an object and transfer nothing.
Several factors come into play where transfer is concerned: shedder status; state of agitation (nervous, excited, etc); cleanliness; sweaty, recent contact with mouth; type of contact, duration of contact, material contacted.
The bottom line is that there may have been Ramsey DNA, but it wasnt found in any incriminating locations.
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AK