BOISE, Idaho (AP) — The lead prosecutor tasked with finding justice for four University of Idaho students killed in a grisly quadruple stabbing more than two years ago laid out his key evidence Wednesday at a court hearing for Bryan Kohberger, who agreed to plead guilty earlier this week to avoid the death penalty.

NBC News' Gadi Schwartz presents a timeline following how Bryan Kohberger went from criminology student to killer. Kohberger pleaded guilty at an Idaho court to homicide charges as well as one count of burglary after he stabbed four university students at their home near the Washington border.