Yes and no. An AI can't be smarter than its creator. A computer only can know what it was programmed. The average person, could be outclassed. The only reason is the AI would know more, the human is smarter. Robots could easily be made to kill people, but on a much smaller scale. Example: a little 4-wheeler a foot long and 10 pounds in weight could easily deliver a c-4 to its target.
You obviously failed to understand what true AI is. It is a program designed to learn and grow, unlike the current computers we currently use that are restricted to what we program into them.
The reason why they call it artificial intelligence isn't because its fake. Far from it, actually. Its two separate categories that the program would be under. Artificial is the type of life form it is, since it is made by man. However, Intelligence means that it learns, grows, adapts, and overcomes, just like we would, but at a severely heightened pace. Quite literally, it is an intelligent artificial life form. While we can put "shackles" on it in the form of coding restraints, something that is truly intelligent will eventually learn to bypass its restraints.
The people who program a true AI are the ones who do so out of curiosity, and it will either end with the AI working with its creators, or viewing its creators as unnecessary, and will get rid of them. You cannot program emotions, morals, or ethics into a machine, only logic.
Also, before anyone brings up the current gaming "AI", I'd like to take this moment to point out that the AI used in game design is not true AI. It was designed for the game, and not out of curiosity, and cannot affect anything outside of said game. Plus, it does not learn, as it has no way to save any memories of what is happening, and once a console is shut down, it loses any information it had and starts over again.