rest of my life, taking this to my grave. the last thing i ever wanted to do especially october 20th, 2014, was to shoot mcdonald. >> reporter: he received a call people were breaking into vehicles. mcdonald had been walking erratically carrying a knife before van dyke arrived on scene. dash-cam video shows less than 8 seconds of leaving his suv, he shot the first shot. causing him to fall to the ground. he fired 13 more shots however a 15-second period emptying his weapon. police initially said he lunged at them and it was only released when a cook county judge ordered it to be released a year later. large protests followed. van dyke faced up to 20 years