"Police say the guard identified himself as security personnel and demanded that the suspect surrender. When the suspect pointed the gun toward the guard, officials say the guard fired one shot striking the suspect in the head."
Good shooting by the guard. However, he needs to upgrade his gun for a more powerful load for predators with really hard heads and small brains.
Something like this?
Bowen Classic Arms modified Ruger Super Redhawk in .475 Linebaugh. Fires a 400gr bullet at 1450 FPS. This one is mine. Guaranteed to stop a 1000lb Alaskan Brown Bear with a single shot.