The sister of University of Idaho murder victim Kaylee Goncalves said everything in her body told her to “run” as she came face-to-face with Bryan Kohberger during his sentencing – but instead delivered a powerful, blistering takedown of her sibling’s killer.

After Bryan Kohberger was sentenced for the Idaho murders of Ethan Chapin, Madison Mogen, Xana Kernodle and Kaylee Goncalves, the latter’s sister detailed his true demeanor in court.

Kaylee Goncalves' sister Alivea Goncalves shared her powerful reaction to facing Bryan Kohberger during his sentencing hearing in Idaho

Alivea’s speech is a masterclass in destroying a narcissist’s ego by breaking down any sense of superiority or control he may have felt he gained during his crime. Alivea’s powerful statement earned applause in the courtroom that the judge didn’t try to quell.

Kaycee Goncalves' sister Alivea breaks down her blistering victim impact statement at Wednesday's sentencing of Bryan Kohberger, who pleaded guilty to murdering Kaycee and three other people in 2022.

Alivea Goncalves said she would not offer her sister's murderer tears. Instead she called him "pathetic," "as dumb as they come."

It was a somber and emotional scene at Ada County Courthouse in Boise, Idaho, on Wednesday when Alivea Goncalves, the older sister of Kaylee Goncalves, delivered a powerful statement to her sister’s killer, Bryan Kohberger, at his sentencing.

Kaylee Goncalves’ father, Steve, spoke with CNN’s Jim Sciutto after Bryan Kohberger was sentenced to life in prison without parole for the murders of four University of Idaho students, including his daughter.