Solving the quadruple murder of the University of Idaho students found brutally stabbed to death last weekend will take meticulously detailed detective work, CrimeOnline’s Nancy Grace says.

“The devil is in the details, and that’s how they’re gonna catch this guy,” she told Fox News. “DNA, fiber, fingerprints, hair. That’s how they’re gonna do it.”

Grace pointed out that investigators are tracing the steps of the victims and looking at who might be considered a suspect in those locations. And, she said, they may even be using a “cell tower dump” — collecting data from the nearest cell phone tower from the crime scene to see just “what phones are pinging off that tower” during the time of the crime.

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[Featured image: Fox News screenshot]