The son of a gambler and a criminal on the run, at a young age Jacob got to experience first hand the cruelties people could unleash on one another. He spent most of his younger years in the lower levels of Nar Shadaa until, as fate would have it, he would bear witness to a Jedi in action. While out gathering scrap from wrecked swoop bikes with his father, he was left alone for just a moment while his father went "fishing" as he called it, which is when he would go pick the pocket of a prospective target.
Unfortunately for the both of them he picked wrong. His father soon returned with some extra credits and a gunman on his tail. Soon the both of them were held up by the armed Devaronian. His father was the first to be gunned down for his crimes, his pleas for mercy quickly ignored. The man then turned his attention to the young Jacob, hinting that the boy would either be sold to slavery or murdered right here and now. Before either of them could react however a blinding blue flash shot out from the shadows and the Devaronian's gun fell to the ground, sliced in half. "Surrender yourself peacefully." spoke a robbed man with an extremely calm exterior. Unarmed the Devaronian gave himself up peacefully after some protest. Seeing Jacob's potential to use the force, the now orphaned boy seeing no other way out, left his home world with the Jedi to begin his training. Though it took some time for him to adjust he eventually grew accoustomed to his new life as a Jedi hopeful, and eventually a Jedi Knight.
Given his time on Nar Shadaa he has learned to keep his emotion in check. rarely outwardly showing how he feels in most situations. He is overly relaxed and often can be found sleeping in the temple halls under the guise of "meditation". Though he is overly relaxed, he has a strong sense of justice, often wanting to see his duties as a Jedi all the way through no matter how difficult the task. His overly relaxed attitude has also caused him to be a bit of a slob, his quarters and his star ship are both incredibly messy with trash found laying about.