[justlurking]

The CNN story quotes an LEO saying that the shots heard were probably by law enforcement. An eyewitness said the perpetrator was shot 3 times before he went down.

http://www.cnn.com/2016/11/28/us/ohio-state-university-active-shooter/

Yes, I recognize the irony, given my tagline.

[LouieFisk]

“The CNN story quotes an LEO saying that the shots heard were probably by law enforcement.”
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That would make sense of the conflicting accounts.