‘It does get exhausting. It gets frustrating.’

When a breakthrough does come, Entin will be there to get the story—even as most of the national news media has moved on. “It does get exhausting,” he said. “It gets frustrating, and I feel personally connected to the story. I want to see justice for Nancy Guthrie and her family.”

To mark the 90-day milestone, Entin will host a special report Wednesday night, "NewsNation Presents: The Nancy Guthrie Mystery.” Entin will bring together many of the experts he’s called on during his coverage of the case, bringing viewers into the evidence and what it suggests.

One of the most significant pieces of evidence is the blood found on the ground outside Guthrie’s front door. “We’ve been digging into that,” Entin said. “We interviewed Jim Clemente, who’s a retired FBI profiler and investigator, and he analyzed the blood spatter for us.”

Entin and his crew were among the first to reach Guthrie’s door after investigators ended their initial investigation. Close-up video of the blood spatter provided Clemente with enough information to draw some conclusions.

“His theory is that, you know, it may have been a nosebleed,” Entin told me, “that her face was close to the ground when she was brought out the front door, that she was alive when she was brought out, and that she was likely put into a car in her driveway.”

The blood was there from the beginning, but it only became a new lead to explore recently, reinforcing criticism of the local sheriff and his department’s investigation. “Initially, a crime scene was established—and then dismantled within about two days,” Entin said. When the scene tape came down that first time, Entin and his team were able to walk right up to the front door.

In major cases—especially those attracting huge media attention—investigators keep the scene closed until every possible piece of evidence has been photographed, collected, and analyzed, a process that often takes days, even weeks. Making the Guthrie case even more unusual, the sheriff’s office put the police tape back up when the FBI arrived. “And, you know, people are worried,” Entin said. “They didn’t maintain (the crime scene.”

A case with few leads—and many theories

For 90 days, investigators and reporters like Entin have run down hundreds of leads, and done dozens of interviews. And yet, despite all the attention—including public appeals from Savannah Guthrie and her family—no suspect has been identified. Detectives don’t even have a theory they’re following about the motivation for the kidnapping. Was it about money? Was it personal somehow?

“There’s all sorts of theories,” Entin said, “but which one is correct we still don’t know.” It’s one of the main questions Entin will explore in his special, where he brings together three of the world’s most famous criminal profilers. “We sat the three of them at the table and had them go through everything that we’ve learned, every little detail since the beginning, to see what they thought.”

And they concluded this was not a kidnapping where the kidnappers intended to release Guthrie in exchange for a ransom. “They were very skeptical this was really a ransom, because they didn’t believe it made sense,” Entin said. “There would have been a clear way for them to receive money, which there never really was. There would have been more communication with the family. And then the fact that there’s the blood outside. If you were kidnapping an older woman like that for ransom, you would be very careful to make sure she wasn’t injured…you need to get the money.”

“We’re going to really get into this in the special, but they believe it was someone that knew Nancy,” Entin told me. “They went back to all sorts of statistics based on other crimes,” and believe it wasn’t random. “Not necessarily someone that knew her closely, but someone who had been in her life at some point before.”

A brilliant plan—or did the kidnapper just get lucky?

With no arrests or suspects after 90 days, Entin says one key question is: just how smart was the kidnapper or group that took Guthrie? Did they execute a flawless plan and get away? Or did the missteps of law enforcement cause them to miss things?

“Are they so sophisticated that they've outsmarted law enforcement, or did they just get really lucky?” Entin said. “That's a question I think about every day that we don't really know the answer to. And there definitely were fumbled on the law enforcement side, which could have something to do with it. So honestly, we don't really know.”

Entin’s special, “The Nancy Guthrie Mystery,” airs at 9 p.m. ET Wednesday on the CW broadcast network.