People are intentionally or unconsciously cruel.  It boosts a battered ego, if someone calls your pain a joke.  Understand that it may take time, but research some reading not doctors, and try to find the answers within.  I bet you can do it.

What a fascinating topic!..Who would have thought that by licking the envelope of a letter of threat, could lead to the perpetrator faster by these DNA factors, the fluids, especially, and the techniques which defy time to unravel murders are all great factors in forensic law.  Good Stuff.