> Meaningless distinction, a human designed the bot that pulled the trigger. Building a robot that then murders someone doesn't absolve the designer from the ramifications of what they built.

Not meaningless at all. A better analogy is that you built a robot that pointed a gun at a chair, and said, "this robot will pull the trigger on date X, so don't sit in that chair on date X."

It's not trivial to argue that the robot designer shares the lion's share of the blame here.