I think you are a little bit crazy to be honest! Such a long post for so little! OMG
I never claimed I had any knowledge of weapons - never touched one, never will!
You clearly have no knowledge about fingernails! 
Seeing how I have seen fingernals break while a female was shooting a weapon, while women used bats and tools and during physical altercations it would seem I am on much more solid ground than you.
But that is not unusual you constantly make spurious claims without any basis such as insiting that th emdoerator would be not admissible under today's existing rules of court though you have no evidence at all to support such claim and simply mad eit up. Today's evidentiary rules are little different substantively than back in 1985. Tere is no legal basis to exclude evidenc ejsu tbecause it was found by someone other than police.
To attack it on the basis of saying evidence coudl have been planted requires establish a likelihood the evidence was planted. Of course the family would have lacked the know how, skill and much more so trying to pretend they could have done so is a joke which is why neithe rat trial nor on appeal the defense has not been able to allege such to the courts.
They would need an evidentiary basis to make such suggestions. You on the other hand don't worry about needing evidence and just believe any nonsense you feell like which is your right but it does make you foolish to do so.