Are you talking about the 3 guys one hammer video?
I know initial reports were there dozens of these videos and that they were serial killers..
Wiki Link (no graphic shit)
The Dnepropetrovsk Maniacs is the media epithet for the killers responsible for a string of brutal murders in Dnepropetrovsk, Ukraine in June and July 2007. The case gained additional notoriety because the killers made video recordings of some of the murders, with one of the videos leaking to the Internet. Two 19-year-old locals, Viktor Sayenko (Ukrainian: Віктор Саєнко, Russian: Виктор Саенко) and Igor Suprunyuck were arrested and charged with 21 murders.[1]