“Russian forces killed Ali Abu Muhammad al Dagestani, the emir of the al Qaeda-affiliated Islamic Caucasus Emirate (ICE), in April. In the weeks that followed, jihadists on social media spread rumors that a senior ICE sharia official known as Muhammad Abu Usman had been named as his successor. It does not appear, however, that ICE formally announced Abu Usman’s new role. “
Source: Amid defections, Islamic Caucasus Emirate publicly recognizes new leader | The Long War Journal
