How the Saudi king benefits from turbulent cleric’s execution

WHY did Saudi Arabia execute Shi’ite cleric Nimr al-Nimr now?
The Saudis have had Nimr in custody since 2012, sentencing him to death in 2014. The cleric has been a vocal critic of Saudi Arabia’s ruling royal family for years, going as far as threatening Shi’ite secession in the minority’s eastern homeland in 2009.