He was so confident he could beat the system that he wrote a book detailing how he committed the murders in a non-confession. (the proceeds went to the Goldman family because OJ never paid up when he lost the civil suit)
"IF I Did It": The Quasi-Confession of O. J. Simpson (famous-trials.com)
Besides that ;the trial got us the Kardashian family reality TV culture (even Kato Kalin got his own show) . His other lawyers Cochran and Dershowitz went from civil rights lawyers to celebrity lawyers.
Judge Ito because of TVs in the court became a personality judge who got the most of his 15 minutes of celebrity . Mark Fuhrman became a talking head "expert " on issues of law enforcement.
Lost in the dust to dust were the victims .