Key O.J. Simpson Murder Trial Witness Kato Kaelin Says He Thinks the Former Athlete Is 'Guilty'

20 years after the infamous 1995 trial, key O.J. Simpson trial witness Kato Kaelin says he believes that the former NFL player is guilty in the murder of Nicole Simpson and Ron Goldman.

In an clip from his upcoming Monday interview with Barbara Walters for her Investigation Discovery's Barbara Walters Presents American Scandals, Kaelin, now 56, opened up about testifying in Simpson's headline-making trial...