Ruined day trader Mark O. Barton describes to police where they can find the bodies of his wife and children.

Supreme Gentleman (and incel "saint") Elliot Rodger muses about becoming the ruler of the world.

Adam Lanza, perpetrator of the Sandy Hook Massacre, imagines a horde of mewling babies has him trapped in a remote cabin.

Short stories. Blog and diary entries. Bizarre fantasies. Suicide notes. List of favorite movies and music. Threatening letters. Complaints. A one act play.

These are the writings of men and boys (they are all males) who have committed some of the worst peacetime massacres in the world. Some of the writings are short, raising more questions than they answer. Some are long and compulsively detailed. Some are introspective and insightful. Some are strange and clearly the products of disturbed minds. One or two make little sense at all.

These writers are isolated, broken, lonely. Many of them are angry. Very, very angry. And they want to seek revenge on the people and society who wronged them.

You will be amazed, horrified, and fascinated. You may find the thoughts expressed uncomfortably similar to your own. You may dip into this book each day, entranced by nightmarish acts and deranged flights of fancy. You may stay up late at night, and read the whole thing in one sitting. All of the writers committed, or attempted to commit, mass murder. All were either gunned down, captured, or killed themselves at the scene of their crimes. The writers include:Dylan Klebold, one half of the team that executed the Columbine Massacre, an event that has inspired other mass killers for over two decades;Seung Cho, lone perpetrator of the Virginia Tech Massacre;Richard Farley, who carried his obsession with a young female co-worker much too far;And more than 30 others.

If you are a person who enjoys true crime, and gaining insight into the minds of the people who did it, Exit Plan is for you.