Luis Garavito (The Beast)
The media named him as Le Bestia or The Beast for the atrocious crimes he has committed. After confessing to rape, torture and murder of over 147 young boys, he is said to be one of the worst serial killers ever. According to experts, the number could even be as high as 300. He was guilty in almost all of the cases he has confessed and was sentenced to 1,853 years in prison. Fortunately for him, Colombian law limits sentencing to just 30 years. With good behavior, he could be released earlier. Scary to be in the midst of one of the worst serial killers in the world!