Garrick was the commander of the Geneva-class heavy cruiser UNS Dharma who, according to information by James Poole, had reached Persephone to ambush the Alliance of Free States USS Lexington and USS Jericho.
Garrick attacked first and begun the Battle of Persephone. Realizing that there was no way out, captain Steven Dayna hailed the UN vessel and offered complete and unconditional surrender. He proposed to evacuate my crew and that of Jericho using intership shuttles, and be treated as prisoners of war under the Geneva Convention.
Garrick accepted and gave them 20 minutes to abandon the ships. While the POWs were transferred to the Dharma, Garrick noted one human life sign on board the Lexington, and Dayna excused himself that it could be an unconscious injured since they had no time to search the ship for casualties. But according to Dayna's plans, a hidden 500 kiloton nuclear warhead detonated, destroying the ship and killing all of the crew of the 3 ships; so that the discovery on the planet would not be given to the UN.