The problem already is here
a) We do have killer robots, they are called drones and no, they are not like remote controlled model planes with guns, since they are controlled via satellite which means a minimal latency of a quarter of a second, they need to aim and shoot themselves. Currently just the target is selected by a human.
b) We already have "artificial intelligence" in the form of large organisations. They act like beings, often even against the interests of the human beings they are made out of. If you look at the example of banks, you can see how devastating they can be.
Biting the hand that feeds IT
