This is indeed a tragic case and we should do something to support Ali-Al-Nimr.
As citizens of our respective countries, the only recourse we have is to write letters to our gov't representatives and ask them to intervene.
Also some people have established petition drives that can perhaps influence the President that this is an important issue to address.
Chang.org has this petition for Ali:
https://www.change.org/p/king-abdul...-stop-the-crucifixion-of-ali-mohammed-al-nimr
and more importantly the Presidential We The People petition site:
https://petitions.whitehouse.gov/petition/negotiate-release-ali-mohammed-al-nimr
So perhaps the best course of action is for those interested in this cause to publicize it along with the links to the petition site in the hopes that enough people will sign up and the President per his promise will investigate and try to intercede.
We also have to remember the difficulties here where each country tends not to take advice from other countries in their local affairs. I can cite the various US states with death penalty cases where some foreign dignitary speaks out against an execution or contacts the state's governor for clemency that have failed. Or when the US has condemned some countries treatment of US citizens and has been ignored.
I appreciate everyone's contribution here and suggest the thread now be closed and those of us who feel strongly about this go out, sign both petitions and spread the word on other social sites like Facebook (via the share option).
Be aware that you will be hit with many types of comments some very ugly and that very few people will actually share it with others. But if you can get 100,000 to sign the Presidential petition then perhaps you'll get President Obama to step forward .
One other area is if you know someone of influence, an aunt, uncle or cousin... that you can mention this to. They may have some insight as to how to proceed.
-- Jedi