Its already been established that Reeves was the shooter.
Upon closer review of this particular article, they didn't say Reeves was the shooter at this point and continue to avoid saying that. They only admit Reeves shot himself. But it clearly appears to be the case, Reeves was the shooter...But ya never know until all the evidence is in.
John Robert Reeves, 25, shot himself in the head, and the three others with him were murdered
Sheriff's Capt. Duncan Fraser declined to say if Reeves was the shooter, explaining that "we don't have forensic evidence yet to say that definitively."
I suspect you need to read multiple news articles nationwide to get the better story. It appears to be straight forward story. Sad and tragic however.