Life stolen

I came across a picture of my sister today.  It was one I hadn't really seen before.  And I cried.  I cried for the person she would have been if that predator had not come into our lives.  I saw the innocence lost. I found myself grieving for the person she could have been if she didn't have this horrifying thing happen to her at such a young age.  I am surprised at this many years later how angry I am over it.  Could I have done something, anything to stop it?  I miss her so much.