I've known many dozens of murderers. Some double murderers. Some triple murderers. Almost all of them are completely ordinary people, and there is nothing that would suspect you of their deeds if you met them on the street or at a party.

I was just thinking of one right now, after reading the article, who had allegedly bludgeoned their wife to death with a barbell while their toddler was with them. Looking them up, though, seven years after their trial their appeal went through, it looks like they are getting a retrial. "Defendant convicted of first-degree murder was entitled to a new trial to determine whether he was insane or guilty but mentally ill at the time of the offense because the prosecutor misstated critical evidence and made several other improper and prejudicial comments that deprived the defendant of a fair trial."