The easiest way to kill that stupid service that you can't figure out how to end.
Use Homebrew to download and install the executable.
brew tap fraction/homebrew-formulae
brew install murder
Add the executable to your path and give it permissions.
sudo curl -Lo /usr/local/bin/murder http://git.io/GFkGAw
sudo chmod +x /usr/local/bin/murder
Pass a pattern of what to kill as an argument and watch it die. Boom.
murder meteor
Please open an issue for questions and concerns.
Fork the project, commit your changes, and open a pull request.