In the article you posted, not once they they defend the brother that killed his sister as mentally ill; but they did in this case. The both have criminal history; in the article you posted;
"But Kerby was in trouble a year later, in 2005, when he was charged with carrying a firearm without a license after he attempted to purchase alcohol at a Randolph, Massachusetts, liquor store. He was given a six-month sentence and was released in September 2008." In this article opp posted "
Ward had been arrested several times since 2003 for various gun, drugs, and criminal mischief charges," but from 2003 to 2014; he never was given a sentence or served time in jail

.