visiting chinese graduate student who authorities believe may be dead. the 26-year-old was studying at the university of illinois when she went missing they weeks ago. surveillance video shows her getting into brent kristinson s car on the day she disappeared. . kayleigh is reporting on it. what is it that led police to this suspect and why do you think she is now dead. boris that are several layers of evidence that led authorities to the arrest. it starts with the car they mentioned the last known siting of. there are very few of the ma model of car in the area. police were able to trace him a as the owner. one they inspected the vehicle they found the same front hub cap you can see in the video. they could also tell the