He Revealed Something
Sam was actually an ex-police officer. He retired a few years back. He worked with Andre. He was his partner at the time. This is how he knew both police officers at the scene. When they opened the door, he showed them the private investigator badge.

He was working in the town and he needed help. He worked on a massive case and it was a bad one. Let’s just say that Mary and her parents were all involved. The man who he was looking for was a bank robber. You won’t believe how complex all of this was. Check this out.