CrimeOnline’s Nancy Grace says that more technology can be unleashed in the hunt for the killer of four University of Idaho students as they slept five weeks ago.

In an interview with Fox News on Monday, Grace discussed geofencing and cell tower dumps.

“It seems to be a huge task,” she said, “but when you look at the time period … it narrows the task.”

Grace also said she believes the “net needs to widen,” pointing out the detailed use of video and other evidence to build the case against Futos Dulos for the murder of his wife Jennifer Dulos in Connecticut.

Another thread involves a possible scream heard by a late night cook arriving home early the morning of the murders and a possible scream captured on police body cam around the same time.

“Is it relevant? Don’t know, but it’s something you can’t afford to ignore,” Grace said.

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[Featured image: Fox News]