Given the task definition and input, reply with output. In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: A house in Max's town had been robbed recently. Sentence2: That morning, the police had arrested the assumed culprit. Sentence3: Max was in his yard when he heard someone break his window. Sentence4: He soon discovered that someone had stolen his laptop. Sentence5: The police realized that they had the wrong guy.
Max, Guy, Police, Culprit