If I'm an FBI agent, and I'm questioning someone (with a known violent history) regarding a triple murder, and if that person with a known violent history suddenly throws a table at me during questioning, or reaches for and/or grabs an unidentified weapon of any kind (regardless of the potential lethal force of the unidentified weapon), I'm going to take whatever action necessary to protect myself and my fellow colleague(s) at the scene.
I'm not going to think about why this guy is throwing the table at me, neither will I waste time pondering the possible reactions of an ignorant donkey who sometimes pulls a turnip cart or who grazes lazily in a pasture on most days without a care in the world, who may later complain about how unfairly donkeys are allegedly treated. No - I'm thinking I need to protect my life and my colleague(s) life, as I've been trained to do.
If I'm an FBI agent, and I'm questioning someone with a known violent history, and if that person becomes violent towards me or my colleague(s), you better believe that I WILL take aggressive action to protect not only my life, but the life of my colleague(s).