This is a script pack I found online that has three different versions of the Watchmen inside it. It has the Sam Hamm draft from 1989. The draft by Alex Tse and a draft by David Hayter. I'm not sure which draft they are using because on IMDB it says written by Tse and Hayter.

When an ex-superhero is murdered, a vigilante named Rorshach begins an investigation into the murder, which begins to lead to a much more terrifying conclusion.