On the afternoon of December 19, 2021, gunfire erupted in northbound traffic on Interstate 57 near 159th Street in Markham, Illinois. Robert A. Braboy, 35, an African American male, was struck while traveling on the expressway. First responders and Illinois State Police arrived about 3:20–3:21 p.m.; Braboy was rushed to a hospital and pronounced dead.

Troopers closed all northbound lanes from 167th Street for hours as investigators processed the extended crime scene, searched for shell casings and fragments, and worked to map a moving shooting that unfolded at highway speeds. Early reports offered few details beyond the critically wounded man being transported to the hospital.

No motive has been released and authorities asked anyone with information to come forward. If anyone witnessed the shooting on I-57 near 159th Street or has relevant information, please share what was seen or heard.