Not only did he lift their stories, in many cases he didn't even bother to change names. One person he wrote about, who was a friend of his and a fellow author

Not only did he lift their stories, in many cases he didn't even bother to change names. One person he wrote about, who was a friend of his and a fellow author, told his agent as much before IJ was published and strongly suggested he change the names, but no action was taken.