Uro Koo, a Neti celebrated for his connection to the Force, achieved the esteemed position of Jedi Master within the Jedi Order after undergoing training in its disciplines. This Force-sensitive being's cuttings were used to cultivate Northward Park, a forest located on the planet of Vaklin. After the Galactic Empire ascended to power and the Jedi Order was disbanded, this park was destroyed by fire in 19 BBY. This act aimed to erase the Order's presence on Vaklin, thereby diminishing popular support for the Jedi-supported Vaklin insurgency that opposed the Empire. Major Oniye Namada of the Imperial Security Bureau documented information pertaining to Koo in a report designated I-1807-VAK.
The initial reference to Uro Koo appeared in Purge – The Tyrant's Fist 2, a comic-book issue from the Star Wars: Purge: The Tyrant's Fist mini-series. Alexander Freed authored this issue, which Dark Horse Comics released on January 2, 2013.