`` The fact that O.J . ` ` I ' m absolutely certain that my brother Glen killed Nicole Simpson and Ron Goldman , '' Clay Rogers says . ' Rogers was sentenced to death for murdering women in Florida and California . Simpson and Goldman 's killer ` ` is Mrs . Goldman and not Glen Rogers , '' Goldman 's father says . ` ` My Brother The Serial Killer '' debuts Wednesday on Investigation Discovery channel .
` ` I ' m absolutely certain that my brother Glen killed Nicole Simpson and Ron Goldman , '' Clay Rogers says . ' Rogers was sentenced to death for murdering women in Florida and California . Simpson and Goldman 's killer ` ` is Mrs . Goldman and not Glen Rogers , '' Goldman 's father says . ` ` My Brother The Serial Killer '' debuts Wednesday on Investigation Discovery channel .