Joseph Koenig was found guilty of 19 charges, including first-degree murder, for the 2023 death of Alexa Bartell.

GOLDEN, Colo. — A Jefferson County judge sentenced one of the three men who threw rocks at passing cars two years ago in a spree of random attacks that killed 20-year-old Alexa Bartell to 45 ...

ARVADA, Colorado (KCNC) — Jurors have delivered a guilty verdict for first-degree murder for Joseph Koenig, the Colorado man accused of throwing a rock through the windshield of Alexa Bartell ...

Joseph Koenig was convicted of first-degree murder in the death of Alexa Bartell in a rock-throwing incident in 2023. Two other men involved in the incident, Zachary Kwak and Nicholas Karol-Chik ...

Kelly Bartell, the mother of Alexa Bartell, who died after a rock crashed through the windshield of her car, speaks at Jefferson Combined Court in Golden, Colorado, on Friday. - Colleen Slevin/AP ...

Kelly Bartell, the mother of Alexa Bartell who died after a rock crashed through the windshield of her car, speaks at Jefferson Combined Court in Golden, Colo., on Friday, April 25, 2025.

Jurors found Joseph Koenig guilty of first-degree murder in the death of Alexa Bartell on April 19, 2023, after the other young men riding with him reached deals with prosecutors and testified ...