He was killed by their other son, Cain. Cain was jealous that God accepted Abel's sacrifice and not his own.
cain and abel
The son that Adam and Eve had other than Abel was Cain, and Cain did not "replace" Abel, he merely killed his own brother out of jealousy of the love of the Lord.
Cain.
According to the Bible, after Cain and Abel, Adam and Eve had another son named Seth. Seth is considered to be the third son of Adam and Eve in the Book of Genesis.
According to the Biblical story, Abel was the second son of Adam and Eve. -Second son of Adam and Eve -Cain's brother -Cain killed Abel here's the story if you want to read it all http://www.dltk-bible.com/genesis/chapter4-cv1.htm
Adam and Adam was the first man Genesis 4:1-2 And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD. And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.
* Adam (as in Adam and Eve) * Abel (son of Adam and Eve) * Aaron (traveled with Moses) * Andrew (one of the 12 apostles)
Seth. Adam and Eve's third son after Cain and Abel.
We are told that Adam and Eve had a third son - Seth.
Seth is Adam and Eve's third son, the son to replace Abel because Cain murdered Abel
Adam's youngest son was named Seth according to the Bible. Seth was born after the death of Abel, who was killed by his brother Cain. Seth is considered to be the ancestor of Noah and ultimately all of humanity, according to the Bible.
Seth had no grandmother. He was the 3rd son of Adam and Eve, born after Cain killed Abel.