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Whoever killed four prostitutes, and possibly four other people, and then dumped their bodies in heavy underbrush along a beachfront causeway on Long Island appears to have a sophisticated understanding of police investigative techniques…

A series of taunting phone calls made to the teenage sister of one of the victims — calls that the police suspect came from the killer — were made from in or around some of the most crowded locations in New York City, including Madison Square Garden and Times Square, according to the people briefed on the case and to the mother of Melissa Barthelemy, that victim.

The locations, detectives say, were probably chosen because they allowed the caller to blend into crowds, so that if investigators pinpointed his location from the cellphone’s signal, they would be unable to pick him out of the crowd using any nearby surveillance cameras, one of the people said.

This fact, as well as the killer’s use of disposable cellphones to contact the four victims who have been identified — women in their 20s who advertised their services on Craigslist — suggested to some investigators that the killer was well versed in criminal investigative techniques, gleaned either through personal experience or in some other way, and could even be in law enforcement himself…

Also, the caller kept each of his vulgar, mocking and insulting calls to less than three minutes, according to the dead woman’s mother, Lynn Barthelemy. The caller made about a half-dozen calls over roughly five weeks to the victim’s sister.

One investigator said the brief duration of the calls thwarted efforts by the New York Police Department to use the signal to pinpoint the caller’s location and find him, something Lynn Barthelemy said they told her they tried to do four times…

Ms. Barthelemy’s body was one of four uncovered over the course of three days in December in the thick undergrowth along Ocean Parkway, near Gilgo Beach, in the town of Babylon. All were dumped in burlap sacks.

RTFA for a bit more detail. I guess back in the day before the multiplicity of CSI variants on TV it would have required a bit of research to know how forensic investigation has moved on since the days of Quincy.

We even had a suicide here in New Mexico that imitated an episode of CSI in an attempt to make it look like murder. Life imitates art, once again.