B. The murderer will be arrested soon by the police
C. The murderer is to be arrested soon by the police
D. The murderer will have arrested by the police soon
Explanation
Passive voice of Future Indefinite Tense
Firstly, change the structure, so the object in active voice becomes the subject in passive voice. Secondly, use the verb 'to be' in the same tense as the main verb in the active voice. Lastly, use the past participle of the main verb.