Vanity. He didn't need to be told who was responsible for the bloodbath that had occurred while he was away.
He was about ten miles away from the warehouse and could smell the stench caused by Vanity. He was concerned that she would be harmed because he suspected that the people who had kidnapped her would be male and countless.
To be honest, he smiled inside as he saw the drained bodies on the ground. He didn't care if she had to massacre everyone; the only thing that mattered to him was that she was safe.
So, when he saw her standing there in the bloodied clothes she'd been wearing...