this is a book I've been working on. how do you catch a killer or killers that move like a ghost? what happens

By dead doll stories

this is a book I've been working on. how do you catch a killer or killers that move like a ghost? what happens when one killer leaves behind black eyes that stop at officers feet at every crime scene? what happens when a killer turns their victims into finger paint? you do you catch a killer that seems to be everywhere and nowhere at the same time? this book is a work in progress.