Nicknamed the “Machete Murderer”, at one point Juan Corona was the most prolific known serial killer in U.S. history. His star may have faded in the past 40 years but we’ll give him his props here. Born in Mexico, Corona came to the US at the age of 16 to work as a picker on carrot farms. In 1955, he was a survivor of the Yuba River flood, which killed 74 people. The experience caused him to suffer a nervous breakdown, convincing him that everyone on the planet had died in the flood and he was the sole survivor. So he spent the next 16 years attacking the “ghosts” he was seeing with machetes and burying their bodies in some of the grounds he was farming. Convicted of 25 murders (mainly of fellow labourers), Corona’s body count is believed to be much higher. However, he now has one in the “goals against” column, as natural causes wiped him out around the age of 85.