For 10 points, name this current Head of the Chechen Republic.
A 2015 video depicts this man firing a machine gun while encircled by camouflaged SUVs and is ostensibly a trailer for a movie called  Whoever Doesn't Understand Will Get It . This honorary leader of a branch of the "Night Wolves" motorcycle gang engaged in a spat with John Oliver after posting a plea for help finding his lost cat to his Instagram account, which has over 2.7 million followers. This man's father, a former chief mufti of Ichkeria who was assassinated in a soccer stadium in 2004, is the namesake of his state-sponsored MMA promotion, whose facilities he showed off to Floyd Mayweather in March 2017. In April 2017, (*)   Novaya Gazeta  broke allegations that this man's government was rounding up, detaining, and torturing suspected homosexual men. For 10 points, name this current Head of the Chechen Republic.
A 2015 video depicts this man firing a machine gun while encircled by camouflaged SUVs and is ostensibly a trailer for a movie called  Whoever Doesn't Understand Will Get It .
Ramzan (Akhmadovich)  Kadyrov