Dawoud Al Marhoon is a Saudi Arabian who as a teenager participated in the Saudi Arabian protests during the Arab Spring.
He was arrested on May 22, 2012, sentenced to death in September 2015, and as of 23 September 2015, awaited ratification of his sentence by King Abdullah (and then King Salman of Saudi Arabia), to be carried out by beheading and crucifixion (in that order).
Executions are usually carried out by public beheading, although prisoners have been shot by firing squad.