I would definitely help my friend in this matter, i would tell him about the cyber crime department,where he can fill a report for justice  ,i would tell him about  the disadvantages of cyber crime that how it can lead to serious major issues and how it can destroy ones life by intentionally harming the reputation of a person. i would try my level best to boost up his confidence i would take him to the doctor  who will try to change his mind by his oral methods. i would try to maintain a positive and a peaceful attitude which would help him to get out of his critical situation. i would help him as much as i can . because friendship is all about understanding and helping. 
thank u
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