What to Know
Van Dyke is charged with murder in the shooting death of 17-year-old McDonald nearly four years ago
The Chicago police officer was captured on dashcam video shooting McDonald 16 times the night of Oct. 20, 2014, on the city's Southwest Side
Van Dyke entered a plea of not guilty
UPDATE: A verdict was reached in the trial of Chicago Police Officer Jason Van Dyke in Laquan McDonald's fatal shooting. Read more here.
For more than a year, what exactly happened in the fatal shooting of Chicago teen Laquan McDonald remained a mystery. But in November 2015, one video changed it all.
Dashcam footage showing the Oct. 20, 2014 shooting was made public on Nov. 25, 2015, sparking anger and outrage that poured into city streets in the form of massive protests.
Fast forward to 2018 and that one video is now among several raising questions on a moment that would ultimately transform the city's police department and prompt political change.
Take a look back at the footage that shaped the case now at the center of a high-profile murder trial.