Welcome and nice shots! Somehow missed most of these spots when I last visited the area.
Did you brave those stairs?
Probably goes without saying the blood is probably fake as the hemoglobin degrades pretty rapidly.
http://www.fortechs.com/technology.html Also splatter pattern makes no sense (note slashes on the wall but none on the side of the tub and only small splotches in the tub, floor and on the toilet).