- “Alright Richardson, I got him boozed up on Salarian Ale. He's gonna be drunk as a damn dog, so get ready to take the shot.”
- —Gri Derock to Jonah Richardson after getting Krimus Garfron drunk.
Gri Derock was a human bartender on Omega, former Alliance Marine, and operative for the Office of Alliance Territorial Hegemony. He fought in the Alliance for eight years mainly combating batarians in the Skyllian Blitz earning the rank of sergeant, the purple heart four times, and the bronze star for bravery.
After the war he was left with no where to go and with no money so he turned to Omega and borrowed money from numerous crime lords to build his dream, a nightclub he named the Drunken Gun. He worked there for fifteen years and became one of the most successful nightclub owners on Omega, earning over eighteen thousand dollars a night at his high point, selling drinks and asari prostitutes.
In 2167 CE, he was hired by the OATH as an informant. They kept him on their payroll and he provided the OATH with as much information he could get through his drunken patrons. He played a large role in the assassination of Krimus Garfron in 2172 CE, where he acted as the inside man, aiding the OATH sniper, Jonah Richardson by giving him updates and by getting the pirate lord drunk and with a prostitute who was actually another OATH operative. Garfron left the Drunken Gun, and was shot once in the throat, killing him instantly.
After Garfron's death Derock continued to run the Drunken Gun as he always did. However, events turned unfortunate for him on April 22nd, 2182 CE, when his personal desires got him killed. The amount of money he borrowed to make the Drunken Gun was over sixteen million and that night, he was so happy with his wealth that instead of paying his monthly dues to Alberous Cralik, the crime lord who lent him the money to construct his nightclub. He spent it all on asari and upgrades to his mansion that included a 349" television display and a statue of Saint Peter dating back to 12th-century Rome. Angered by Derock's failure to pay his debt, Cralik had Derock abducted from his own nightclub at gunpoint. An event that cost the club's Krogan bouncer and two bystanders their lives. He was brought before Cralik who had Derock's eyelids cut off and shot, forced to watch his own execution take place due to him lacking the ability to close his eyes. After receiving a round in the head, he was tossed out on the streets where he bled to death for four minutes.