In 1999, when the US was engaging in a bombing campaign in Serbia against "military targets" that were staffed by civilians, the US bombed the Chinese Embassy, killing several and injuring dozens of civilians.
The US later "apologizied" by saying "sorry, we programmed the coordinates improperly."
Now, I'm not sure if that means some CIA intern college kid task monkey supplied the wrong coordinates to the bomb programmer, or if the bomb programmer typed the (correct) coordinates improperly.
But, software absolutely does kill people when wielded by lazy, incompetent, and often, diploma-holding programmers.
https://en.m.wikipedia.org/wiki/United_States_bombing_of_the...