Earlier quoted context omitted.
From the article, it seems like he was collateral damage and not the intended target - the drone strike was targeting Ibrahim al-Banna. That sucks, very much a wrong place wrong time, but I would say that a fairly effective strategy for not being collateral damage is to not hang out with internationally wanted terrorists.
I don't know why the parent poster linked to his son, but this is probably who he was thinking of: https://en.wikipedia.org/wiki/Anwar_al-Awlaki A US citizen who was executed by a drone strike ordered by Obama himself.
A little different, but imagine if an American decided to go fight for Germany during WWII. Should he receive any special consideration above what native-born German soldiers got, before Americans start shooting towards him?