The last of three friends accused of killing a driver in Colorado by throwing a rock through the windshield of her car was convicted of first-degree murder Friday. The teens were driving around suburban Denver in 2023, throwing rocks at passing cars, when one struck and killed 20-year-old Alexa Bartell in a crime prosecutors classified as murder. ... On April 19, 2023, after seeing Bartell’s car leave the road after being hit, the three friends circled back a few times to look again, according to testimony and investigators. One of them, Kwak, took a photo as a memento, but no...