Why Makes a Spree Killer Create Terror Among Innocent Victims? There is no specific classification for some of the vilest acts in society that are above murder in the first degree. The person committing these crimes is known as a spree killer. They pick off their victims at random most of the time, but they do so in large numbers all at once or over a very short time period. This book contains 10 names and stories of people that have committed such a horrendous crime. You might remember the tragedy that they perpetrated but not be familiar with their personal story.