[....]
But three years later, no arrest has been made in the slayings — and police have remained mostly tight-lipped about the case.
Doug Carter, superintendent of the Indiana State Police, which is leading the investigation, has insisted repeatedly that the Delphi slayings are not a "cold case."
Sgt. Kim Riley of the Lafayette Post of the Indiana State Police agrees.
"We're still working very hard on this case. It's not something that we've put off. It's not a cold case," Riley said. "We're still getting tips … at least one a day on average.
"We've told the family that we're not going to give up until we've run out of information to look at. That's kind of where we're at right now."
[....]
For the first six months afterward, there were more than 25 police agencies — mostly from Indiana — "that were assisting in this case in one way or another," Riley said.
Three years later, there are two state troopers, two Carroll County sheriff's deputies, a Delphi city police officer, and someone from the prosecutor's office working regularly on the case. And the FBI "still assists us," Riley said.
[....]
With an unsolved case that is three years old, such as the Delphi slayings, even with the use of DNA "you're not going to get a solution to a case, unless somebody is in the database," Pagliaro said.
State Police officials won't say whether they have collected DNA samples from the Delphi crime scene.
[....]
Investigators in the Delphi slayings have been reluctant to release detailed information from the crime scene, such as whether DNA or other evidence was collected, how the two girls died and when the slayings likely occurred.
Riley, of the State Police, said it's "kind of like a poker game. You don't want to throw out all your cards at the start."
"We don't want to put out any more information than we feel the public needs to know," he said. "When we have the person we want, we want to know what they know about the case. … That's why we've held back on the information that we've given out."
[....]
One area where State Police have been unusually forthcoming is in their belief that the suspect or suspects in the Delphi slayings is familiar with the town and the trail area.
"That is one of the theories that we have, that either the person is from the area, or visits frequently, that he's been to the area more than once," Riley said.
"It's probably one of the stronger theories that we have at this time, based on the terrain and the location. We have a strong suspicion that the person is either from the area, has visited there before or has lived in the Delphi area for a number of years."
[....]
{/quote]
Police have remained mostly tight-lipped about a case with fewer investigators and tips coming in than before.
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