You can play whatever word games you like, but blood is on the hands of everybody who was in a position not to do it, who did anyway. And, on everybody whose job it is to prosecute them, and has not.

The President is nowhere assigned any legal authority to waste US citizens on his own say-so, so everybody involved participated in what is, by strictest legal definition, a murder. There were accessories before the fact, and after, with copious documentary evidence.