Lol how by killing Iranians? No Americans were on that flight. Out 176 , 90 odd were Iranian , 50-60 were Canadian Iranian
Well that iranians need to answer. But this was not a human error. The aircraft was in visual range, one can see from videos, and some one who sits on the radar can differentiate between a passenger aircraft or fighter aircraft that too just few 5-6 minutes into flight after take off. They might have chose that flight which had the highest number of westerners. Or they were waiting for other flight but shot this one.