But Vance said investigators remain confident that they can still recover clues from the damaged hard drive.

With Lanza reportedly obsessed with video games, Vance said “all electronics” from his house are in police custody.

“State police have a very comprehensive crime laboratory, and the FBI has the same capability,” Vance said. “Any electronic equipment that was seized is going to be examined, and we are certainly believing there is information that is going to be helpful to us in this case.”

Vance said investigators will work through the holidays “dissecting the shooter from the day he was born to the day he died.”

“We spent countless hours going through every stitch of that house we could uncover,” Vance said.

Rep. Joe Courtney (D-Conn.) said “the hunger for information” about the Lanza family and Adam Lanza’s motive is “overwhelming” around the state.

But Courtney, a former public defender who represents eastern Connecticut, said elected officials and residents remain confident that police and federal officials are working as fast as they can, “given the fact some of the key witnesses lost their lives.”