Personal Info:
Real Name: Stanley Carter
Also Known As: No known Alias
Place Of Birth: New York City, New York
First Appearance: Spectacular Spider-Man Vol.1 #107 (1985) Bronze Age Villain
Known Associates: No known Associates
Group Affiliation: Former agent of S.H.I.E.L.D. and NYPD police detective
Base Of Operations: New York City, New York
Grudges: Spider-Man
Creators: Peter David and Rich Buckler
The Sin-Eater has no super human powers. However, he is a good fighter, knowledgeable in martial arts and in guns, particularly shotguns. He is also a good detective and law enforcer.
The sin-eater is an occupation in certain cultures, particularly in the United Kingdom and the Ozark Mountains in the U.S. As a part of religious magic, whenever a person died, his or her relatives placed fruit and other foods on the chest of the corpse. The food is supposed to absorb the dead person's sins. The sin-eater (usually a beggar) would eat the food and thus cleanse the dead person's soul. This was similar with the scape-goat ceremony of Judaism. The Roman Catholic Church considered it a cardinal sin because it provided absolution outside the purview of the priesthood, and resulted in immediate excommunication.
S.H.I.E.L.D. agent Stan Carter was familiar with this occupation. Carter was a volunteer for an experimental drug, developed by S.H.I.E.L.D. R&D basing on Phencyclidine and aimed to increase strength and stamina. The project was interrupted because it was considered too dangerous (in fact, the drugs were driving Guinea pigs crazy), and Carter, who considered this an affront and an authority abuse, violently resigned. There were no traces of drugs in his system, being totally purified, but nevertheless the drugs had already driven him crazy.
Carter then joined NYPD and become a detective. His partner died in a shoot-out while fighting some young criminals. This unchained in Carter an obsession to destroy people who abused of their authority and thus "sinned". He decided to "absorb the sins of the world". He wanted to purge evildoers from a society where nobody else could punish them (For instance, judges and lawyers giving criminals minor sentences, or priest protecting the criminals who confessed their sins). He bought a shotgun and clothes to improvise costume and became the Sin-Eater.
Sin-Eater at Marvel Database
Sin-Eater at Marvel.Com
Sin-Eater at Comic Vine
Sin-Eater at SpiderFan.org