Shower leak through wall tiles
I found that a leak was coming through my sub-floor into my basement. After inspecting the shower, I realized that the tiles, the first 4 rows from the bottom felt loose. I then removed these tiles throughout the perimeter of the shower to realize that they all kind of just came off with ease and then noticed that the wall behind was wet and had some mold. I treated the mold, now need a tile guy I guess. The behind the tiles was just sheet-rock with glue that held the tiles on. After looking at the sub-floor, beneath the shower, from the basement, the sub-floor is wood-rot, it feels like I can peel layers or push my hand through. I was suspecting that water got behind the tiles in the shower, and leaked to pool underneath the shower which lead to the floor rot.
Any suggestions or recommendations would be most appreciated.
Thank you for your time.