Between October 13, 1972 and Funerary 13, 1973, Herbet Mullin killed a total of 13 people. The last of these, Fred Perez, was an elderly Hispanic gentleman who was unfortunate enough to be working on his garden when Mullin drove by. For no readily apparent reason, Mullins did a u-turn, came back, shot the man, then drove off.
All of this took place in broad daylight, and there were several witnesses, one of whom called the police and gave them the license plate number of Mullin’s car. He was arrested within minutes of this phone call, and readily confessed to all his murders. Herbert Mullin is currently serving life imprisonment for the crimes, after trying and failing to use the insanity defence.