I would believe that in those spheres of power they would have booked a hitman with better hardware and training. His pistol could not properly cycle and he took quite long between shots. Also he had the possibility to move up to the guy and shoot him in the back of the head to save some time but preferred to shot multiple into his back from further away. For me it seems more likely it was an act of Vigilantism.

It happened in France for example. Now it would not be public killings by guillotine of course but multiple independent attacks by ied/gun/fpv against guys like that ceo are surely thinkable.