1 Blockage in a coronary artery during or after a heart attack. 2  Blockage or narrowing of one or more coronary arteries that puts you at risk for a heart attack.  Narrowings that reduce blood flow and cause persistent chest pain (angina) that medicines do not control.
Harold Frederick Shipman (14 January 1946 â 13 January 2004) was a British doctor and one of the most prolific serial killers in recorded history.
Jeffrey Dahmer. Jeffrey Dahmer is one of the scariest serial killers in U.S. history. Over the course of thirteen years, Dahmer murdered 17 men and boys; worse yet, his murders involved rape, dismemberment, necrophilia and cannibalism.