Davey Macquarie is a strung-out junkie on a decrepit seeding ship somewhere deep in space.
Daniel Marsden is the dead man hunting him.
And one of them isn't going to survive this.
You can check it out here: https://archiveofourown.org/works/18449114
It's a wholly original work, but I have no interest at this time in publishing it commercially.
Make of that what you will!