Oscar Grant III, fatally shot by an unidentified BART(Oakland,CA) officer early New Year’s Day. Oscar Grant was unarmed, laying face down and shot in the back. REPORT: OAKLAND, Calif. – Law enforcement officials urged patience while they investigated details surrounding the fatal New Year’s Day shooting of a 22-year-old man by a transit agency police officer. Bay Area Rapid Transit Police Chief Gary Gee said on Sunday that the agency is “committed to completing an unbiased, thorough and detailed investigation” of the shooting death of Oscar Grant. “This case is not even four days cold. We’re in the early stages of the investigation and we will do a very thorough job,” he said. Several unanswered questions remained after BART officers went to Oakland’s Fruitvale station to investigate reports of a supposed brawl on a train on which Grant was riding around 2 am Thursday. A friend of Grant’s who was with him on the crowded Oakland train station platform at the time of the shooting said Grant pleaded with officers not to harm him. “Oscar yelled, ‘You shot me! I got a four-year-old daughter,'” said Fernando Anicete. “Oscar was telling us to calm down and we did. We weren’t looking for any trouble.” Anicete was among more than 50 people attending a tearful news conference in Oakland on Sunday where Grant’s family announced they planned to file a $25 million claim against the Bay Area Rapid Transit agency this week. A claim is the first step in the process of suing the agency <b>…</b>