Telling a Lie to Tell Save a Life, Part 2

The difference between the moral theory of Kant and Mills is best illustrated by the anecdotal story of the criminal killer wanting to kill an innocent victim. 

John Stuart Mills

Many philosophers believe Mills is correct about

Telling a lie to the killer who wants to kill an innocent victim

As being a morally correct behavior 

Instead of the categorical imperative being  the first principle (Kant) ,

Utility is the first principle in Mills  ethical theory

(The doctrine that an action is right insofar as it promotes happiness, and that the greatest happiness of the greatest number should be the guiding principle of conduct)

Both recognize intermediate moral rules

Kant calls them "duties" and Mills, "subordinate principles".

Not to lie, to be beneficent, not to steal, not to deprive others of liberty, etc.

Mills asserts that the good of the moral life is pleasure (happiness)

The bad of moral life is pain and unhappiness

Mill believes that consequences (end results) of an action determine morality

Teleological (teleology) is the philosophical theory that prioritizes consequences

Kant’s corresponding theory is deontology (deontological)

It prioritizes duty or obligation or rule In Utilitarianism

Mill, in promoting happiness as the end result of good moral action,

Actions will be right as much as they promote the general happiness

Ergo, actions are evaluated morally based upon their consequences,

Not the actual act itself