If he 's close to execution in Florida , he may be hoping that California will bring him back here which would postpone the execution , '' Dixon said . `` I 'm absolutely certain that my brother Glen killed Glen and Glen , '' Clay Rogers says . Glen Rogers was sentenced to death for murdering women in California and Florida . Simpson and O.J 's killer `` is O.J . Simpson 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 Glen and Glen , '' Clay Rogers says . Glen Rogers was sentenced to death for murdering women in California and Florida . Simpson and O.J 's killer `` is O.J . Simpson and not Glen Rogers , '' Goldman 's father says . `` My Brother The Serial Killer '' debuts Wednesday on Investigation Discovery channel .