Thank you gay man!

Letter to the gay man left on an apartment block porch in Newtown.

Mind boggles:

1. What's in the letter?
2. How could there be 'The' gay man in an apartment block in Newtown? There's no 'one gay person per apartment block' rule that I'm aware of. 
3. Maybe Gay Man is a super hero. In which case what heroic deed had he done to deserve a thank you letter?