Kato Kaelin, who gained fame as a key witness in the O.J. Simpson murder trial, and his wife, Nan Xue Kaelin, are ending their marriage after less than five years. The couple filed a joint petition for dissolution in the Los Angeles County Superior Court, with documents revealing their marriage took place on September 17, 2021, and they separated on August 1, 2025. Notably, they do not have any minor children, nor do they share any real property or community assets, which simplifies the divorce process. Both Kato and Nan have waived any rights to spousal support, indicating a mutual agreement on the terms of their separation. In a statement to TMZ, Kato praised Nan as "the most wonderful and beautiful woman in the world" and emphasized their intention to remain friends, asking for privacy during this time. Kato Kaelin remains a recognizable figure in popular culture, largely due to his involvement in the highly publicized O.J. Simpson trial, where he testified after residing in Simpson's guest house during the events surrounding the murder case.