Remember that Jeffry Dhmer was loved by his neighbors. There was no end of people at his trial willing to give him character references. John Wayne Gasey was a clown and loved by his neighbors. That you could not suspect him capable of doing this does not, by any stretch of the imagination, mean that he was not capable of it. We have all seen the tv programs where, calm as can be, a wife/husband tries to hire a hitman to do in the spouse. She/he spares no details in telling the would be assassin how the dead is done, and where and when to make the hit, etc., etc.

Stand back from the scene, let the dust settle, see if you can get a copy of the police report, and then make a decision.