Families of the University of Idaho murder victims spoke directly to their children's admitted killer Bryan Kohberger at his sentencing hearing.

The convicted murderer appears gaunt and expressionless in the photo, taken as he begins to serve out multiple life sentences for the murders of four University of Idaho students: Xana Kernodle, 20; Ethan Chapin, 20; Madison Mogen, 21; and Kaylee Goncalves, 21.

"Happy Face Killer" Keith Jesperson believes Kohberger's awkwardness and high-profile murder case make him vulnerable, and he's recommending a transfer to Oregon.

She told police that they planned to meet shortly after he stabbed four students, but that they stopped talking because their conversations made her "uncomfortable."

This new information comes from two friends of Kaylee Goncalves who spoke with police in interviews that were just unsealed by the Moscow Police Department.

Idaho quadruple murderer Bryan Kohberger transitions from county jail to maximum security prison where inmates with life sentences have nothing to lose

One victim’s aunt urged the killer to call her and answer her questions. Another’s sister demanded to know her sibling’s last words.

A friend of Bryan Kohberger, who also shared an office with him at Washington State University, spoke with police about his inappropriate interactions with women