Poetic ways to slaughter

What would drive you to murder?

A question that haunts many, the act of taking one's life is seen as an abhorrent act of true, unadulterated evil, something so cruel the mention of it can make most people's blood freeze.

A question that seemed to need an answer, two stubborn detectives, alongside a joyful pathologist turned detective, are assigned the case.

A question that only a true criminal, the infamous 'poet', would be able to answer.

Not without a rhyme, of course.