When a murder is so vile and shocking that it stuns the consciences of people for decades, this killing can only be called notorious. Here, we delve into some of the most heinous crimes in modern history, where lives are extinguished because of money, jealousy, hate—or for the perverse pleasure of watching another die. Venture inside the twisted minds of psychopathic serial killers such as cannibal Jeffrey Dahmer, John Wayne Gacy (aka Pogo the Clown), Joseph “Golden State Killer” DeAngelo and Ronald “TheBayou Strangler” Dominique. Discover the little-known bloody sorority of female slayers— the grandmotherly Dorothea Puente, baby killers Susan Smith and Andrea Yates, and Aileen Wuornos, who inspired the hit movie Monster. Find out what happens when love goes horribly wrong in the cases of scorned ex-wife Betty Broderick and cheating husband Chris Watts. For those who outsource their dirty deeds, meet the world’s most deadly hit men and female assassins and explore infamous murder-for-hire cases. We also take you behind the headlines of the murders of Tejano star Selena Quintanilla, funnyman Phil Hartman, Voice celeb Christina Grimmie and actress Rebecca Schaeffer. No matter where you live, you can find a bloody trail of passion, revenge and despair. When it comes to committing murder, anything goes.