Yeah it took me four tries - the video depicts the first.
He has a TON of HP and when low, he starts shooting very quickly, but eventually he does go down. On my third try, I took him down, he started self-destruct and laughed, I wanted to get a good look at him and started running too late, so the explosion killed me and I had to repeat the fight yet again. Did not make that mistake again :)
All three AI ghosts were down from the explosion though.