Earlier quoted context omitted.
And how often does this happen: "Police regret this incident and would like to extend their condolences to the family of the man," Icelandic police chief Haraldur Johannessen told reporters.
All the time? We've just become too cynical to believe it, or pay it much mind.
It's obvious enough why this would be the case. Keep in mind, in America police departments will be financially liable to the dead person's family if they admit an error, anything they say can be used against them in court, and shootings like this happen a lot.