MOSCOW, Idaho — A Federal Bureau of Investigation surveillance team tracked Idaho quadruple murder suspect Bryan Kohberger and his father on a cross-country road trip from Washington State to Pennsylvania and members of a law enforcement coalition investigating the alleged killer asked Indiana police to pull him over, according to a law enforcement source, which the FBI denies.
The source tells Fox News that members of the task force investigating the murders in Idaho – a group which includes the FBI -- had Kohberger under surveillance as he and his father drove from Washington State to Pennsylvania. Members of that task force, the source noted, asked authorities in Indiana to pull the pair over to get a closer look at Bryan Kohberger's hands.
The FBI denies it had any involvement in requesting the Hyundai Elantra be pulled over, telling Fox News Digital in a statement that "the December 15th traffic stops conducted on the vehicle being driven by Bryan Kohberger in Indiana were not requested or directed by the FBI."
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Bryan Kohberger is being charged in connection to the fatal Nov. 13 stabbings of University of Idaho students Kaylee Goncalves, Ethan Chapin, Xana Kernodle and Madison Mogen during the early morning hours in Moscow, Idaho.
During a traffic stop by the Hancock County Police Department, the Kohbergers discussed an incident near Washington State University where a SWAT team killed an armed man amid a standoff.
"Well, we're coming from WSU," Kohberger's father, Michael Kohberger says.
"What's WSU?" the deputy says.
IDAHO MURDERS: PA POLICE SAY 'FORCE WAS USED' WHEN SEARCH WARRANT WAS EXECUTED AT KOHBERGER HOME
Both men replied at the same time, and the deputy had a hard time hearing them over the vehicles passing by.
"So you're coming from Washington State University, and you're going where?" the deputy asks.
"We're going to Pennsylvania," Kohberger's father responded.
Kohberger signed an extradition document during a court hearing on Tuesday afternoon and waived his right to challenge the arrest on four counts of first-degree murder.
"Yes," Kohberger said when Judge Margherita Worthington asked if he wishes to "waive the rights that I have just explained to you and return to the state of Idaho?"
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Kohberger, a teaching assistant and Ph.D. student at Washington State University's Department of Criminal Justice, was arrested on Dec. 30 by local police and agents from the Federal Bureau of Investigation at his parents' home in Albrightsville.
The suspect lives in student housing located in Pullman, Washington, around 10 minutes from where the crime happened.