Idaho murders: 28-year-old man arrested in Pennsylvania

A 28-year-old man, Bryan Kohberger, was arrested Friday morning in Pennsylvania's Pocono Mountains 

Sources said that authorities knew who they were looking for and had tracked Kohberger down to Pennsylvania.

A SWAT team entered the location where he was staying in order to take him into custody Friday. 

Moscow police officers, members of Idaho State Police, Moscow city leaders and University of Idaho officials will hold a news conference at 1 p.m. local time Friday. 

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.

The survivors were on the ground floor while the four victims were on the second and third floors.

Police have been urging the public to come forward with information. 

It's been weeks since police and city officials have gathered for a news conference, choosing instead to release small updates through social media. 

This new announcement comes as University of Idaho students are away from campus for winter break.