Youtube video removal

There is a slanderous video posted on youtube that I want removed. It shows up very high up in search engines. I'm looking for someone to somehow get it taken off or to completely bury it by bumping up other videos with related tags. The person who posted it has abandoned the account and is unreachable. I've attempted to contact Youtube many times, however there is no actual support there. Just endless menus that bring you full circle. Whatever it takes, I want this video out of site.