This is a very serious thing, and I don't intend to start any kind of back-and-forth here and further distract from the real issues here.
That said, standing on a political soap box about drug laws and war when Mr. Zeller's primary problem was obviously having been molested is ridiculous. Yes, it's possible that ecstasy in a clinical setting may have helped him, but he was let down in a lot more ways than an inability to get that particular treatment (as he says in the note, he wasn't even seeking treatment).
It's disrespectful to pin this political issue to a man's final note to the world. Even if this was an issue Mr. Zeller felt strongly about, he obviously didn't mean to be some kind of martyr for it.
edited to add: I don't disagree with your point, I just think your timing is awful.