Activist and leader of the non-profit organization Water for South Sudan Inc., which he founded in 2003. He works to educate people about South Sudan while raising money for the impoverished country.
He first became known as one of the "Lost Boys of Sudan" after fleeing the Republic of South Sudan at age 11.
His story became a New York Times bestseller called A Long Walk to Water.
He has dual citizenship in both the U.S. and South Sudan.
His biography was written by author Linda Sue Park.