Seems that more sexual predators/serial killers, of today can usually be expected to do the unexpected, Caring4Many. Many investigative & forensically aware Serial killers/predators of today are very good at deflecting & honing their skills by learning from theirs and other's experiences. In the past if you didn't catch them right away, they would begin to develop a modus operandi; MO.
Due to investigative, communication, & forensic technology advances; DNA/FBI CODIS & Laws, etc., the removal of clothing, use of bleach, fire, water, and other means of forensic destruction are being utilized by predators to remain stealth.
Imo, Jennifer Ramsaran's killer planned this out to mirror the work of an experienced sexual predator/serial killer. Imo, this impotent attempt at emulation failed miserably..
Guess, time will tell..