Yup, did all that multiple times and it didn't work. Anyway, I decided to give it another try after two months of not touching the game. And guess what ? This time the trophy popped ! What I did diffirent this time is that I moved my head forward until I'm way inside the house ... then I looked arond. And ding !. Got my trophy and a new platinum. So if anyone's not getting the trophy ... peeking through the window might not be enough...try shoving your head through the window till you're inside the house.