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.
While many doctor serial killers used their position to find victims, there are other doctors who killed outside of the workplace. There are various motives that most doctor serial killers have, including a need to be seen as a hero and for their own financial gain.