I am not sure how you think a 17 year old kid with ZERO legal or social rights or family support or money was somehow meant to overpower the iron will of the girl's furious parents (who in turn intractably convinced the girl herself), whose roof she still lived under - being in the final years of high school - and the medical fraternity, and the laws of my country, and the will of society. What was I supposed to do? Lock her in a tower?
But congratulations on shallowly judging people as murderers on a whim. Perhaps you might consider how that is a less than ideal characteristic, if caring about the lives of human beings is your actual goal here.
Shame you didn't ensure the same for your own kid