OJ Simpson has great luck.
The knife that was found buried deep on his estate was free of DNA that matched anyone related (or thought to be related) to the stabbing murder of his wife Nicole Brown Simpson and her friend at the home.
Due to time, the knife provided no substantial DNA samples, and no other material (such as hair) that could provide an accurate sample.
If you recall, a construction worker at the Rockingham estate found the knife, who took it to a retired LAPD cop … who then took it home and put it in his toolbox for over a decade.
The absence of DNA wipes it of any possibility of being considered the murder knife.