The Equation of Vengeance

This is the story of what a mind can do when it has nothing left to
protect and everything left to avenge. It is a story about physics and chemistry
and the laws that govern matter and energy and the movement of bodies
through space. It is a story about a father who loved his daughter and lost her
and could not bring her back and so did the only thing he could: he balanced
the equation.
The equation of vengeance.
The equation of love.
The same equation, all along.