I can't access that post. Here is a NY Times post confirming his death:
http://www.nytimes.c...at-83.html?_r=0
As to using this to reach out to others, I have to echo Droplet. Leonard was prominently known for his Jewish heritage and beliefs and unless we know for a certainty that he supported the concept of LE we should be cautious in talking to others about it in light of his passing.
For example, Albert Einstein (also a Jew) could be seen as someone we would have liked to kept alive if possible (and indeed his brain was preserved without his permission, causing a scandal) but he did in fact refuse surgery to prolong his life. He died due to an abdominal aneurysm, something he had seen repaired a few years earlier, and stated ""I want to go when I want. It is tasteless to prolong life artificially. I have done my share, it is time to go. I will do it elegantly." (Cohen, J.R.; Graver, L.M. (November 1995), "The ruptured abdominal aortic aneurysm of Albert Einstein", Surgery, Gynecology & Obstetrics 170 (5): 455–8, PMID 2183375).
How do I know this? I was going to use him as an example of what would have happened had his life been extended. Given this fact however I did not.