Oh ok that;s an interesting idea. Here's a newsday article from the time:
Crime Stoppers of Suffolk County and the Suffolk County Police Homicide
Squad are asking the public's help to solve the murders of two women whose
bodies were found in North Shirley and East Patchogue.
On Jan. 30, 1994, the body of Colleen McNamee was discovered in a wooded
area south of the Long Island Expressway, east of the William Floyd Parkway, in
North Shirley, police said. She had been strangled. She was last seen Jan. 5,
1994, getting into a small blue car in front of the Blue Dawn Diner in
Islandia. McNamee was a 20-year-old outpatient of the South Shore Treatment
Center in Islandia.
Prior to McNamee's disappearance, the body of Rita Tangredi-Beinlich, 31,
was found on Nov. 3, 1993, in a wooded area off Esplande Drive in East
Patchogue, police said. She also had been strangled. Tangredi- Beinlich was
last seen hitchhiking the evening before on Montauk Highway, east of County
Road 101, in East Patchogue.
Both women had frequented the East Patchogue area and had been arrested for
prostitution. According to police, their murders have been linked.
http://webcache.googleusercontent.c...72+&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a
So the things that stick out are the blue dawn diner in islandia and the south shore treatment center. And of course that Rita's daughter Amanda was "best friends" with Melissa Barthelemy. A coincidence? I don't believe in coincidences