The accused person's name was just released and he is John Mark Carr.
He is apparently a convicted sex offender and has confessed to "certain elements of this crime."
He had been under investigation for quite some time. Patsy Ramsay knew about this suspect because the Boulder, Colorado District Attorney Mary Lacey discussed it with John and Patsy sometime prior to Patsy's death in June.
"Smart! And into all those exotic mystiques -- The Kama Sutra and Chinese techniques. I hear she knows more than seventy-five. Call me tomorrow if you're still alive!"