Hmmm... that's tricky! What a little stinker.
Do you mean he peed 5x in a row, on the shirts, bedding, etc? That sounds like marking to me. Is he neutered? How old is he?
Does he have free roam?
Sounds like he may have too much freedom... you need to start from stage one again. Crating when can't be watched 24/7. Literally not taking your eyes off of him for the whole time he's out. Don't give him the opportunity to fail, take him out every 30 minutes if you have to. Praise and treat like crazy when he goes outside. If he can't be watched, he needs to be a very small area (i.e. a crate or a small expen).