The man suspected of stabbing to death four university students in their beds will be taken to Idaho to face murder charges after he voluntarily agreed to be extradited.

Bryan Kohberger, 28, appeared in court in Pennsylvania, where he was arrested in a raid on his family home last week.

He is alleged to have killed housemates Kaylee Goncalves, 21, Madison Mogen, 21, Xana Kernodle, 20, and Kernodle’s boyfriend, Ethan Chapin, 20, in the early hours of 13 November last year.

Kohberger has appeared in court as Indiana State Police confirmed the suspect was stopped twice in Indiana on 15 December – just over a month after the murders and two weeks before his arrest.

In footage from the second stop, a state police officer is seen walking towards a white Hyundai Elantra.

The officer, wearing bodycam, looks into the vehicle and Kohberger is seen in the driver’s seat while his father is on the passenger side.

Kohberger was stopped for following a vehicle too closely and released without warning.

The officer tells him: “I’m not gonna give you a ticket or warning… Just make sure to give yourself plenty of room, OK? So like I said, it’s all about how fast you are going, OK?”

Kohberger and his father have a conversation with the officer but it is not clear what they are saying.

The two men had been stopped nine minutes earlier by officers from a local sheriff’s department, also for following another vehicle too closely.

The sheriff’s office said in a statement: “At the time of this stop, there was no information available on a suspect for the crime in Idaho, to include identifying information or any specific information related to the license plate state or number of the white Hyundai Elantra which was being reported in the media to have been seen in or around where the crime occurred.”

Murder suspect supported by family in court

It comes as two other housemates, who were at home at the time of the attacks in November and were sleeping in ground floor level bedrooms, say they slept as the murders took place.

When they woke up the next morning they summoned other friends to the house and one of those friends called police believing the housemates to be unconscious.

It was only then they discovered the horrific crime scene.

Mr Kohberger has been charged with four counts of first degree murder.

He appeared in court in Monroe County, Pennsylvania, more than 2,500 miles from the small town of Moscow, Idaho where he is alleged to have killed the students.

He was supported in court by his father, mother and sister.

His mother was seen becoming visibly upset as Mr Kohberger looked back at his family multiple times, nodding his head at them.

Court marshals offered her a tissue box as she continued to look distraught, looking down, bent over.

Read more: What do we know about the criminology student accused of quadruple murder?

Mr Kohberger denies murder but signed a document agreeing to his extradition and will now be moved to Idaho at some point over the next ten days.

Once he is in the state, he will be served with an arrest warrant for the murders and a document will be unsealed which will detail what factors have led police to believe he is the perpetrator.

Suspect ‘eager to be exonerated’

Mr Kohberger had been a criminology student at Washington State University in Pullman, Washington, nine miles from the University of Idaho, where the victims studied.

In December, he drove cross-country from Idaho with his father accompanying him on the journey, arriving in Pennsylvania on 13 December, one month after the murders. His father is not a suspect.

Mr Kohberger’s former attorney, Monroe County chief public defender Jason LaBar, said in a statement his client “is eager to be exonerated of these charges and looks forward to resolving these matters as promptly as possible”.