Excellent work! This appears to be a good sized auditorium; Hasan evidently arrived early to ensure that he would get a close seat.
I wonder WHY was he chosen to be included? How did he get to be a Major and was he considered important only because he was a Muslim? I find this all perplexing.
Second row center is the place to be if you want to pull the weapon unseen and get a clean shot at close range.