In this world, there are not only many good people, but also many bad people. There are many people, but the worst ones among of them are the serial killers. So, I looked into some of the world's notorious serial killers.

     Before we proceed to some of the world's notorious serial killers, let us know what a serial killer is. The definition of serial killer is not always, but one killer typically commits serial killings of two or more murders.

     So, now, let us start to look into some of the world's notorious serial killers. First, Richard Ramirez, who is called, "Night Stalker", he killed 13 people are committed rape, assault, and theft. If victims were couple, he would kill the man first, and then, he would rape the woman. Also, he dug a victim's eye to take it as a souvenir. He was caught on the street and died in the year 2013. Second, John Wayne Gacy is called,

 "Killer Clown", He was ho

mosexual, sohe raped many boys and killed 33

 people. He was called, Kill

er Clown, because he usually dres