Cain

From Conservapedia

Cain was the firstborn son of Adam and Eve as recorded in the Bible. Born after the fall, he was also the first murderer, killing his brother Abel because God accepted Abel's offering, but not Cain's. Sent out by God with a curse to be a wanderer who would always have to toil hard for little reward, Cain feared for his life, but God put a mark on him so that no one would kill him otherwise they would be given his punishment seven times over. In time, Cain built a city that he named after his son Enoch. (Genesis 4:10 - 4:17)