Teen charged as adult in killing at Woodley Park Metro station Eight other youths face juvenile criminal charges in connection with the case. One was charged with aggravated assault and robbery; the rest were charged with aggravated assault, police said. Authorities have not identified the juvenile suspects. At least one more suspect was being sought Monday by police. At a hearing Monday in D.C. Superior Court, Myers was ordered held until his next court appearance. Hearings in the juvenile cases had not concluded in time for publication, but a judge ordered all eight suspects held ahead of another hearing scheduled for Monday. Griffin was killed early Saturday inside the Woodley Park Metro station. In court documents made public Monday, police said that Griffin had gone into an Adams Morgan alley to buy marijuana from a group of young men Saturday shortly after midnight; when he returned to his companions, he told them that the youths attacked and robbed him at gunpoint, taking his black Helly Hansen jacket and an iPhone. Griffin and two friends walked less than a mile to the Metro station to head home, according to the court documents. The people who had robbed him, part of a group as large as 12, were on the platform, police said. One of them, the court documents say, was wearing Griffin's jacket. Give me my jacket back! Griffin said. "You're going to have to see us!" replied the teen who wore it, the documents say. After an argument, members of the larger group attacked one of Griffin's companions, according to the documents. Griffin and the other friend rushed toward the station manager's kiosk, the court papers said, but then Griffin went back to help his friend on the platform. The other friend told investigators that he lost sight of Griffin after reaching the station manager. According to the court documents, a police officer who watched Metro security footage saw Griffin engage one teen in a boxing-style fistfight and then saw Myers sneak up behind Griffin with a knife, stab him in the chest and run. Griffin was pronounced dead at a hospital about 2 a.m., the court papers said. Myers told detectives that he stabbed Griffin in self-defense, according to court papers. He denied a role in the robbery but admitted to attacking one of Griffin's friends on the Metro platform, the court documents said. Griffin was a 2012 graduate of Sherwood High School in Sandy Spring, where he was described as someone who would "run through a brick wall for his team and his fellow players" by Marc K. Thomas, his former football coach. He worked as a contract driver's assistant in the Waste and Resource Recovery Branch of the National Institutes of Health's Office of Research Facilities since late last month, according to an agency spokeswoman. In an interview with WJLA-TV, Lunette Griffin urged authorities to charge more of the suspects as adults in her son's killing. Her son stood "6-foot-1, weighing 200-and-something pounds," she said in the television interview. Without their help, Olijawon wouldn't have been stabbed. Martin Weil and Michael Laris contributed to this report.