OJ did not stab anybody.
You're probably right.
The fact that OJ denied owning the "ugly ass" Bruno Magli shoes was just a case of a bad memory?
The fact that OJ had a badly cut hand which dripped out blood as he walked away from the murdered bodies was just a coincidence?
The fact that there was blood in OJ's Bronco which matched Ron and Nicole was from another time?
The relatively rare glove which Nicole bought for OJ and was found at OJ's property and had the blood of Simpson, Nicole and Ron was another coincidence?
The other glove being at the crime scene was just bad luck?
OJ holding a gun to his head and the suicide note was possibly the actions of a heart broken man?
OJ had his passport, $9,000 in cash and a fake goatee and moustache in his possession, because he wanted after the death of his ex wife, to go on holiday?
OJ beating his wife for over a decade and clubbing her car with a baseball bat was just family problems?
Etc., etc., etc...
So yeah if all of this evidence isn't right, then I suppose it's possible that OJ didn't stab anybody.
JohnM