So what is on his arm?
Since Arrigoni is being called a humanitarian and peace activist, one can imagine it says something like "No more war" or "Peace forever" or maybe "Mom" or "I love puppies."
However, this modern martyr who was killed by the very people he loved and supported chose a different message to permanently ink on his arm.
It says "Moqowama." That means "resistance."
The very same word that Palestinian Arab terrorists use to describe suicide bombings, rocket attacks against civilians and everything else they do to target innocent Israelis.
That fact that he chose that word, from all the words in the world, to decorate his body says everything you need to know about how peaceful and humanitarian he was.