The Killer's Requiem: A Vigilante Justice Thriller

Making the world a better place for animals one murder at a time.
Tommy is not a good man.
He's a killer for hire, or he was before he met Zero.
The dog saved his life. Helped him find his soul. But now, Zero is dead and Tommy is ready to join him.
Until he sees the protests and hears the story. A man killed a dog. Beat the poor boy and murdered him because he had gotten in the trash.
Maybe Tommy has time for one more kill before he leaves this earth but this one he'll do for free. This one he'...