<p>US police investigating the frenzied stabbing of four students at a small Idaho university said Friday they had arrested a man on the other side of the country.</p>.<p>The brutal killings in mid-November left the college town of Moscow in shock as residents struggled to come to grips with the first murders there in several years.</p>.<p>The students -- Kaylee Goncalves, 21; Madison Mogen, 21; Xana Kernodle, 20; and Kernodle's boyfriend, Ethan Chapin, 20 -- were likely to have been asleep when they were stabbed multiple times, detectives have said.</p>.<p>Autopsies revealed some of them had defensive wounds, indicating they tried to protect themselves as their killer struck.</p>.<p>The slayings triggered a massive manhunt and appeals for help from the public, as well as a rush of amateur online sleuthing as armchair detectives tried to piece together scant clues released by investigators.</p>.<p>Thousands of tips flooded in to police in the far western state, and on Friday, Moscow Police Chief James Fry said they had made a breakthrough -- 4,000 kilometers (2,500 miles) away.</p>.<p>"Last night in conjunction with the Pennsylvania State Police, Federal Bureau of Investigation, detectives arrested 28-year-old Bryan Christopher Kohberger, in Albrightsville, Pennsylvania on a warrant for murder," he told reporters.</p>.<p>Fry said Kohberger is a graduate student at Washington State University, whose campus is a short distance from Moscow.</p>.<p>An archive search of the university's website reveals Kohberger to have been a PhD candidate in the department of criminal justice and criminology.</p>.<p>"Due to Idaho State law, we are limited in what information we can release today, until Kohburger has his initial appearance in Idaho," Fry said.</p>.<p>No motive was revealed for the killings, and police are still searching for the murder weapon.</p>.<p>US media reported that Kohberger was arrested at his parents' home.</p>.<p>He has made one appearance in court in Pennsylvania, and is due to appear again on Tuesday.</p>.<p>Bill Thompson, Latah County prosecutor, said Kohberger was being held without bail on suspicion of four counts of first degree murder, and one count of felony burglary.</p>.<p>If he opts not to return voluntarily to Idaho, the state will seek to extradite him from Pennsylvania, he said.</p>
<p>US police investigating the frenzied stabbing of four students at a small Idaho university said Friday they had arrested a man on the other side of the country.</p>.<p>The brutal killings in mid-November left the college town of Moscow in shock as residents struggled to come to grips with the first murders there in several years.</p>.<p>The students -- Kaylee Goncalves, 21; Madison Mogen, 21; Xana Kernodle, 20; and Kernodle's boyfriend, Ethan Chapin, 20 -- were likely to have been asleep when they were stabbed multiple times, detectives have said.</p>.<p>Autopsies revealed some of them had defensive wounds, indicating they tried to protect themselves as their killer struck.</p>.<p>The slayings triggered a massive manhunt and appeals for help from the public, as well as a rush of amateur online sleuthing as armchair detectives tried to piece together scant clues released by investigators.</p>.<p>Thousands of tips flooded in to police in the far western state, and on Friday, Moscow Police Chief James Fry said they had made a breakthrough -- 4,000 kilometers (2,500 miles) away.</p>.<p>"Last night in conjunction with the Pennsylvania State Police, Federal Bureau of Investigation, detectives arrested 28-year-old Bryan Christopher Kohberger, in Albrightsville, Pennsylvania on a warrant for murder," he told reporters.</p>.<p>Fry said Kohberger is a graduate student at Washington State University, whose campus is a short distance from Moscow.</p>.<p>An archive search of the university's website reveals Kohberger to have been a PhD candidate in the department of criminal justice and criminology.</p>.<p>"Due to Idaho State law, we are limited in what information we can release today, until Kohburger has his initial appearance in Idaho," Fry said.</p>.<p>No motive was revealed for the killings, and police are still searching for the murder weapon.</p>.<p>US media reported that Kohberger was arrested at his parents' home.</p>.<p>He has made one appearance in court in Pennsylvania, and is due to appear again on Tuesday.</p>.<p>Bill Thompson, Latah County prosecutor, said Kohberger was being held without bail on suspicion of four counts of first degree murder, and one count of felony burglary.</p>.<p>If he opts not to return voluntarily to Idaho, the state will seek to extradite him from Pennsylvania, he said.</p>