A 28-year-old man, Bryan Kohberger, was arrested Friday morning in Pennsylvania’s Pocono Mountains in connection with the murders of four University of Idaho students, according to a criminal complaint.

Kohberger is a Ph.D. student at the department of criminal justice and criminology, according to the WSU website.

The college town of Pullman, Washington, is about eight miles from the King Road home where Kaylee Goncalves, 21, Madison Mogen, 21, Ethan Chapin, 20, and Xana Kernodle, 20, were slaughtered between 3 a.m. and 4 a.m. on Nov. 13.

Kohberger was arrested on a warrant for first-degree murder issued by Idaho authorities, according to the complaint. Kohberger appeared before a judge Friday morning.

Arrest paperwork filed in Monroe County Court shows that he was being held for extradition to Idaho where he faces a first-degree murder charge.

According to public records, Kohberger appears to originate from Albrightsville, Pennsylvania and maintains a residence in Pullman.

In 2013, he registered as a Libertarian and does not appear to have a criminal record, records show.

It’s been over six weeks since roommates Kaylee Goncalves, Madison Mogen, and Xana Kernodle, as well as Kernodle’s boyfriend, Ethan Chapin, were all stabbed to death in the girls’ off-campus house in the early hours of Nov. 13.

Police said Thursday the rental home would be cleared of “potential biohazards and other harmful substances” to collect evidence starting Friday morning. It was unclear how long the work would take, but a news release said the house would be returned to the property manager upon completion.

The stabbing deaths shook the small town of Moscow, Idaho, a farming community of about 25,000 people — including roughly 11,000 students — tucked in the rolling hills of the northern Idaho’s Palouse region.