Forum:Dean Domino Glitch

Hey, guys. I'm playing the Dead Money DLC and been stuck a while in the quest where I have to kill Domino. I've been kinda mean to him and therefore cannot solve the problem peacefully. However, when I kill him, that little box that appears when a companion dies pops up, tells that Domino is dead and doesn't go away, ever. I click infinitely in the OK button and nothing happens. Also, I can't seem to search the Ghost People I kill or open Dean's Secret Stashes, when I press "E" I hear a little click but nothing happens. Could anyone tell me how to solve these glitches?

what i did was before i opened the door to meet face to face with domino, i turned off all ai, snuck behind him and pick pocketed the key from him. then i turned his individual ai off, and turned the regular ai back on. kill him and on to the next quest!