Anywhere other than USA, maybe.
However there are a lot of US cities where the missus won't duck down to the shops for a bottle of milk without making sure her handgun is in her purse. Carrying a gun is so normalised over there.
The fact he (legally) carried a gun is not unusual. Nor is it relevent to what happened. Nor is it justification for ANYBODY to put ten bullets into a person's back (unless that person was directly threatening someone with the gun). The victim was face down on the ground, pinned down by several men, and actually his gun had been removed from him before the first shot was fired.
Back in Joh Bjelkie Peterson's day, things got perilously bad in Queensland with regard to protesters, but at least nobody got shot. At the time, it was illegal for 3 or more people to gather in the streets, as that constituted "a mob of uncontrolled protesters", and warranted a sound roughing up by the coppers.