According to William Dear, Jason had already been diagnosed with intermittent rage disorder, commonly called Jekyll and Hyde disease. That’s not all. Dear claims that as a teen, Jason was prescribed medication to help control his anger and had already been arrested for a host of assaults with a weapon and crimes before Nicole and Ron lost their lives.
The PI’s book claims Jason wrote a note where he claimed to be three different people and spoke about ending someone’s life if they hurt his loved ones. To top it off, DNA at the scene never matched O.J.’s, but Jason’s was never tested. Dear believes Jason was behind the crimes, and O.J. merely arrived too late.