Surely, you wouldn't want to KILL anybody, and besides, murder is a very complicated thing to commit successfully.
And even IF you WERE to succeed in DOING so, you would be forced to live with the consequences for the rest of your life, and besides... Murder doesn't benefit anybody.
Now I once have thought of committing murder, but I couldn't bring myself to doing it, knowing full well, the ramifications of what would happen if I were to terminate another life and I couldn't live with the guilt of murder on my conscience so much so, that I would commit suicide if I were to commit murder and I value life too much, to want to commit either.