Blue's Clues

Look at this class act.
If Bluebird were a real person she would be such a nerd. She'd probably have a sherlock hat just for these kinds of situations. 

Anyways, being a loner for so long made her an expert tracker. When she examined the blood found in Skinner's territory, she caught a whiff of Sandwalker's scent whaaaaaaat

Bluebird investigates Skinner's territory.  You know that some of the others have found pabloo blood on the ground that seems off.  More recently, it has been detected that the pabloo blood is covering up the blood of another cat.

Using all of your skill, you find that the masked blood belongs to Sandwalker.  And there's a lot of it.  This is far from the place where his body had been discovered.