>> that was pretty definite. >> reporter: with life saving efforts over, sgt. norton walked over to the bathroom to see where leslie fell. >> i look off to my left and that's the entrance to the bathroom. there's blood all over the floor. >> reporter: he went inside, saw the shower and the marble bench and couldn't help but wonder. >> if the shower is way over here, what is she doing way over here? >> reporter: the sergeant also asked himself how a slip-and-fall had caused such significant injuries. like leslie's huge black eye. >> it was closed and swollen and completely black. i mean, i've been doing this a long time and that was unlike any black eye i've ever seen. >> reporter: he needed the medical examiner to make sense seeing. so when the m.e. arrived on scene, he did just that. >> he examined the skull fracture, which was just massive. it was on the back right side of her head. and then he started getting explaining that when you have an injury to the skull on the right side, it's common for it to bleed into the left side. and that is what caused the black eye