Only going on what the article said: "Ballistic experts say it came from an AK47 assault rifle fired more than 3km (two miles) away from the church in Atlanta, Georgia. It is common for people there to fire guns in the air during New Year celebrations" was the exact quote.
And re-reading the article, I noticed it said 'more than' 3km not 'up to' as I originally said...
I am, of course, not discounting editorial bias or inaccurate reporting. It may also have been referring to a particular locality in Atlanta and not the entirity of Georgia.