The red blood was the knifes friend.
The night was the little girls end.
The killer had left a trail.
And that was his fatal fail.

The detective found the little girl.
In a puddle of red, laying there dead.
The trail was unfound.
The scream of the girl's fear was the only sound the killer heard in his guilt filled ear.

And the kill took the knife
And stabbed himself, ending his life.
His death was his guilt, and in the end took his life.