Cain and his younger brother Abel are the sons of Adam and Eve; Cain was a crop farmer and Abel was a shepherd. Abel told his brother he was speaking to a higher power, and Cain was pleased to hear that his brother was reviving the connection to God their parents had broken. Only Abel wasn't talking to God. He was talking to Lucifer. Lucifer planned to make Able into his pet. Cain couldn't bear to watch him be corrupted, so he offered a deal -- Abel's soul in heaven in exchange for his soul in hell. Lucifer accepted... As long as Cain was the one who sent Abel to heaven. So, he killed him and became the Father of Murder.