Carbon-Copy Killer

An internet film depicts the Carbon-Copy serial killer reporting his crimes over the phone to a New York policeman. The killer reveals the recipient as the murder victim when he speaks his/her name in the telephone confession.
Two days later a direct mail pack arrives with forensic evidence and more news reports, detailing the recipient's own gruesome murder at the hands of the killer. The direct mail features a CSI brown folder, complete with coffee-cup stain, evidence bag, newspaper clippings, crime scene Polaroids and an email print-out addressed to the recipient from the killer.