Help Me Figure This Out...My Friend is Mentally Ill

hi,
my friend of 25 years has seemingly gone insane. he is 40 years old. there is a history of mental illness in the family (brother diagnosed with schizophrenia at 18) and substance abuse.
Six months ago my friend was using meth. He realized he was using to much and stopped. At that time there was mold in the apt below him. he became completly obsessed with the mold. couldnt talk about anything else. because i refused to talk about the mold, he turned to 2 other friends. in addition to the mold, over the course of the next few months, he abandoned his apt full of his belongings. he sold his beloved classic car. he literally became homeless. he then disappeared. 2 weeks after the disappearance, the two other friends contacted me, as well as his mother to try and decide what to do. because of the warrant issued for his arrest in a DUI she wanted to wait till he got arrested to deal with him. 3 weeks later he showed up at onoe of the friends house without any personal belongings, still saying he was Jesus and that he had been working with the police in secret, and that his father had sent people to get him. i chalked this all up to meth use.
his mother came and took him away to arizona. he is not on drugs now. he has contacted me by voicemail and left a very bizarre message about how i was wrong, it wasnt drugs and that he had a mental breakdown. he said other weird things and i was not prepared to speak to him. i wrote him a letter of love asking him to get help. he called friend 2 and wouldnt listen to her when she urged him to get help, and basically wanted to share all his delusions with her, which he still beleives. his mother is not getting him help. today friend 2 got an abusive email from him demanding her to send him some things and to ###$ off (yes, in the same email). i emailed the mother the email he sent her along with TWO different mental health facilities both within 5 miles of her house.
i dont know what to do. should i just leave my letter as the last thing and not take calls? should i take calls and urge him to get help? this is NOT my friend, he is insane. it is so horrible i cant describe it. all of us want to know what to do. HELP!!!! ps he is over 40- so is a schizo diagnosis totally off the mark? do bi-polars have delusions during their "on" period? anything you can say, thanks.

Considering he is older (scizophrenia usually starts late teens to early twneties, especially with a genetic factor), and his drug use, it might have been Drug Induced Schizophrenia (which is an actual diagnosis). Even if it isn't Schiz. or Bipolar (sorry, I have no way to tell), it doesn't sound like just psychosis from drugs (which is usually brief), or a breakdown episode.

I know you want to help your friend, but at the same time he is horrible to you. It seems as if you tried reasoning and information to help him, and it hasn't worked. If he is still delusional, psychotic and violent, and his mother nor him are doing anything, it might be a good idea to call the local authorities to involuntary commit him. It may sound harsh, but if he is a threat to himself or others, and wont voluntary get help, it may be needed.

No matter if you try to reason with him on the phone, answer his emails or shut him out, it doesn't sound like it will help. You can say "go to the hospital" a million times, but if he doesn't believe he should (which he probably doesn't) he won't go.


Panic

I saw a documentary on pbs(public television station)
about METH---the thing is worst then any other drug-litterally sucks all the LIVING THAT IS LEFT IN YOU (when you take it) you become like a walking dead (when you take it) the before and after photos from police stations attest to this---they showed them on TV.
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you can be sucked into this nitemare and all the LIVING THAT IS LEFT IN YOU will follow its lead.
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manipulation is about control--
the 3 big human values on earth are POWER,MONEY,SEX-------if you get caught up in any of these it is of your own choice.
Better you be caught up in Respect & Humility
Better you be caught up in Faith & Common sense.
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C O M M O N S E N S E ! !
don't let your emotions guide you
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a fellow named ROY having a radio program said:
"find the peace within the craziness"
"Don't resent the hurter & you'll be fine,& all of their plans will fail--if you give fear or anger-you're done."