The DNA evidence to exonerate him in this case is pretty slim. On the other hand the bite evidence to convict him was pretty slim as well.
The odds of being randomly murdered is pretty low, while the odds that the murderer during a divorce proceeding is a spouse is very high. Everybody knows OJ killed his wife, the prosecutor just couldn't prove it because of the race card.
I would pretty much bet that he killed his wife and that he is getting off easy only doing 14 years.
"It does not take a majority to prevail... but rather an irate, tireless minority, keen on setting brushfires of freedom in the minds of men. " -- Samuel Adams