The Dnipropetrovsk lunatics are Ukrainian serial killers who were responsible for the series of murders that occurred in Dnipro in June 2007 and July 2007. The case is even more notorious because the murderer recorded some videos of the murder, and one of the videos was leaked to the Internet. Two 19-year-old locals, Viktor Sayenko, born on March 1, 1988, and Igor Suprunyuk (Ukrainian: Ігор Супрунюк, Russian: Игорь Супрунюк), born on April 20, 1988, were arrested and charged Convicted of 21 murders.
The third co-conspirator Alexander Hanza (Ukrainian: Олександр Ганжа, Russian: Александр Ганжа) was born in February 1988 and was charged with two armed robberies that occurred before the murder.  On February 11, 2009, all three defendants were found guilty. Sayenko and Suprunyuk were sentenced to life imprisonment, while Hanzha was sentenced to 9 years in prison.  The lawyers of Sayenko and Suprunyuk filed an appeal, but were rejected by the Supreme Court of Ukraine in November 2009
The Dnepropetrovsk lunatics are two killers known for their leaked videos, “3 guys, 1 hammer”, in which they brutally murdered an old man. In the mid-2000s, the video went viral on the Internet, and this terrible behavior was viewed millions of times. It is so ingrained in popular culture that a quick search on Youtube will find thousands of “3 guys, 1 hammer reaction!” results.
But their murder frenzy extends far beyond Sergey Yatsenko. Viktor Sayenko and Igor Suprunyuk will end the lives of 21 people in total. This is the story.