President Recep Tayyip Erdogan and Fethullah Gulen, the powerful preacher who died this week, began as allies. But their falling out brought bloodshed and an Erdogan crackdown.

The reclusive cleric denied orchestrating the short-lived insurrection against President Recep Tayyip Erdogan that brought tanks onto the streets.

Fethullah Gulen, the preacher who founded an international Islamic movement and was a major ally of President Recep Tayyip Erdogan of Turkey, before being accused of plotting a coup against him in 2016,