As an extension of this question, I guess.
Tehillim 94 discusses the vengeance asked of Hashem to repay the evil done to the downtrodden. It asks "until When, Hashem, will you put up with this" and then explains the "this". Pasuk 6 reads
אַ֭לְמָנָה וְגֵ֣ר יַהֲרֹ֑גוּ וִֽיתוֹמִ֣ים יְרַצֵּֽחוּ׃
they kill the widow and the stranger; they murder the fatherless,
Is this a technical passage, or one balanced with two phrases and two verbs simply for literary reasons? Is the category of death caused to the widow and stranger different from the category (seemingly "murder") brought upon the orphan?
The meforshim I read connect the two verbs but don't really explain why the 2 categories are needed in the verse -- that is, why list the groupings of people separately and then use different verbs which might import different meanings if the ultimate meaning brings them all back together.
Any help in understanding the choice of two technically different verbs and the creation of two groups would be appreciated.