Nothing To See Here Officer

Context matters. The FBI agent panics when seeing a disturbing search query, then immediately relaxes when "process" is added. In Linux/Unix, "kill" is just a command to terminate processes, with child processes being a standard term for processes spawned by parent processes. The difference between murderous intent and routine system administration is literally one word. Developers regularly execute child processes without a second thought. FBI guy can put the handcuffs away.