2 Chicago Police officers appear to have been shot.
Originally, the driver had the driver side window all the way down, but as the female Chicago police officer approached near to the vehicle, the driver side window was raised half-way up.
After the shooting started, the driver engaged Drive and moved the vehicle forward into the rear of a vehicle a few feet ahead and also along the curb.
Somehow, the soon-to-be-deceased party, exited the vehicle and proceeded to the rear of the vehicle.
Seems to me, that was when a generally second fusilage/hail of bullets were fired toward him/vehicle.
The exiting party fell to the ground at the rear of the vehicle, apparently with a firearm in his right hand . . . and the bulk of his torso landing face down and covering his hand and the firearm.
He was alive when police gathered closer to him, but unable to respond and reveal the firearm.
At 2:33 in the Daily Mail UK video, a police officer is on the ground, and his left wrist is apparently damaged. This [black] police officer had been at the right door of the perp's vehicle, when the shooting started.
At 2:50 in the video, another police officer has a wound or blood spatter to his left upper, inside thigh are, plus a more direct wound to his right upper thigh - he exclaims, "Fu__!" as his comrades help him to lay down.