Shocked, disgusted and angry.

This is a tough post but I need some support from the Glow community... Basically I am a competitive show jumper. The point of this story is there is a crazy woman at our stables who I know beats her horses. She manipulates people to believe her crazy stories. I am only 17, I am polite and modest in my riding. I love my horses. But the thing is (I have to say this to get to the point..) I am a cbetter rider than this lady and she is and I know this, extremely jealous of me. Okay so now to the point, my horse who never rolls, misbehaves or ever lies down suddenly is injured terribly by what looks like something sharp. There is NOTHING in his paddock and I and many people searched it. Finally some of the groom's have come to me and confessed that they truly believe the crazy lady did it as they saw her walk past my horse with sharp scissors and straight after that he had this tragic injury. I've dummed this down a lot as it's actually a very long story but I needed to get it off my chest as there's no way that I can prove that this has happened even though I know deep down that it is true. My horses are being moved drastically to another yard to be safe. I am devastated at this situation...