Whistler

Whistler is an alien who became entagled with Brad London during Vietnam, and the two became enemies over time and space.

Brad London finally killed Whistler, supposedly for good, over the Christmas holiday of 2008, but in the process also killed a cop. He has therefore fled the country to Sierra Leone indefinitely.

Before the Retcon (Mini-Crisis)

Whistler was an alternate of the Jordan Davis version of Wolfwood by the name of Brad London, and later merged with him to create the second version of Brad London. There was a large plot arc involved, and Whistler also saw action in the House of Moon.