Born in 1233, Jered was named after his father's famous ancestor. He had a distant relationship with his father, who was often absent, missing his first words and first steps, and not being there for him when he came down with fever, a condition that nearly killed him.
At the age of four, Jered witnessed what would be the final argument between his parents, the same argument that had been repeated throughout his entire life. On the spot, his mother took him with her and headed east from Tristram to live with her mother.
They never made it however, as the wagon they were traveling in was attacked by bandits. Both Jered and his mother were killed in the robbery.
The deaths of his wife and son haunted Deckard decades after their death, and he still held onto the death notice he had received concerning them. Years later, Belial turned Cain's grief against him. Twisting the truth as per his wont as the Lord of Lies, Belial claimed that Jered and his mother were actually attacked by khazra, their souls dragged down into the Burning Hells to writhe in agony. In the end though, Deckard saw through his lies.