Gonzales only shouted a warning to Andrew after he was already fatally injured. When he was lying on the ground, trying to get up, Gonzales then shot him again several times, in the limbs, causing the young rookie policeman who accompanied him to throw up in horror.
Now why would he do this? Well, one possible reason is that he knew Andrew was going to die, and he needed to show that some disabling shots had been fired. My guess is that he will now try to reverse the chronology and claim to have fired the leg and arm shots first. He’ll claim that the fatal wounds were inflicted only after Andrew refused to stop.
I’ll remind you again: Andrew Hanlon was shot seven times, and possibly by two different weapons.