The truth about rick simpson?

Someone please tell me this is some sort of scam. How can this guy make all this concentrated oil from marijuana and just give it awoy for free? where is he getting the money? and is any of this real? is there anything to disprove this guy? i looked on google, but found nothing.
Update 2: he was arrested. and all they did was slap a 2000 dollar fine on him and sent him on his merry way. The oil he makes has about 60-80%thc content, so it is very potent. because of the ridiculously small dose required for medicinal use, the patient typically doesn't get high.

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