Background
Raised by a rogue tribe as a foundling on Jakku, he was raised to follow ancient Mandalorian tradition. He was only a child when the Separatists came and slaughtered his tribe for the Beskar they held. He was the only survivor of a forgotten tribe. He worked as a Bounty Hunter as the Separatists become an increasingly larger threat. One day he was approached by a woman named Ahsoka Tano, who asked for his assistance in an upcoming attack on his fellow Mandalorians. He agreed at the sound of helping fellow Mandalorians. In what was known as the Siege of Mandalore, he fought valiantly against a man of Dathomir he came to know as Maul. He was one of the only Mandalorians to face off against a Sith with a Darksaber and live. However, his Darksaber was lost and he found himself and the Republic victorious. However, as the victory was had the Clones turned on them. He fled to Tatooine as his brethren was slaughtered.
Motivation
Slaughters of the Mandalorian tribes.
The Great Purge.
Money.
Lust.