Given the shocking nature of the murders and the media frenzy that followed, various conspiracy theories have emerged linking Jason Simpson to the crime. These theories range from the plausible to the absurd, but they highlight the public's insatiable curiosity about the case. Some of the more popular theories include:
- Jason acted out of jealousy towards his father's relationship with Nicole.
- He had a secret accomplice who helped cover up the crime.
- Jason was framed to protect OJ Simpson's reputation.