Unless the law of nature precludes killing for honor or entertainment. Also, you seem to say that individuals should be free to toss away their lives, but
inaction next to a helpless person whose life is in an immediate peril is no different in its immediate effect from homicide if help can arrive only from the inactor. Provided that the inactor can render help without injury to himself, his inaction is unrightful, and so an act of help becomes a duty.
here you say that to refrain from helping someone in distress is criminal. I assume, then, that "helpless" assumes "not suicidal?"
Yup. Suicide, although sinful, is generally a right.