Complete the text with the right modal verb and the infinitive. Yesterday night the bank was robbed and John Brown was

Complete the text with the right modal verb and the infinitive. Yesterday night the bank was robbed and John Brown was sent to investigate. Now he is reporting the news to his boss. \"That might be a professional because he did a very clever job. He might know exactly what he was doing because he didn\'t leave any clue behind him. It couldn’t be Teddy Dead because he is in prison now. I thought it might be Freddy Claw but he was in hospital at that time. So it may not be him either. I can’t be sure, but it may be Sky Steve. You know, he is the only one who doesn\'t have an alibi. May I bring him to the police station?\"