Dylan Mortensen told members of law enforcement that she heard Bryan Kohberger say the name of Kaylee Goncalves on the night of the Idaho murders in 2022.

In another short clip, the 30-year-old murderer is seen standing ominously in the middle of his lockup, slowly cleaning his shoes.

However, Idaho State Police Lt. Darren Gilbertson, who was a lead investigator on the Kohberger case, told the Idaho Statesman that "Dateline" got some of their facts wrong. "There were some gross inaccuracies and just complete falsehoods," Gilbertson said.

His fellow prisoners have been shouting at him through the air ducts all day and night, according to a former homicide detective