blazer who smashed through the glass ceiling. what she said was her true legacy. the suspect in the murders of four idaho college students has now waived extradition, new details on his studies of criminology. he asked former prisoners how they chose their victims fellow students tell us how he behaved the weeks prior to the murders, and our correspondent one on one with the police chief and the suspect s lawyer. did he kill these four students and before you pop that bottle of champagne, watch our report in this blind tasting, do people prefer a $200 bottle, or one for just $18 you both prefer the cheaper one. [ laughter ] announcer: this is nbc nightly news with jose diaz-balart. good evening i m kristen welker in for jose on this christmas eve. on this new year s eve we re remembering two giants who left their mark on history. pope emeritu benedict xvi, and broadcasting legend barbara walters and the world is marking new beginnings, celebrations, biggest we v
fry also making this promise. yeah. when we get to where we can release information, i think people are going to go okay that makes more sense now why they held everything and why they did what they did. reporter: tonight new details are emerging about the suspect s background, the sales university in pennsylvania confirming kohberger was an undergraduate student with a degree in criminal justice. a student investigator invited ex-cons to participate in a research study to understand how emotions and psychological traits influence decision-making when committing a crime. we re following up on everything facebook, reddit you name any social media or anything out there. reporter: in recent months kohberger was working towards a ph.d. in criminal justice at washington state university, less than ten miles from the university of idaho. former wsu grad student and