williams was shot and killed outside a bowling alley in alameda. >> now still no arrests have been made. >> reporter: as a boy antwan williams loved sports. >> he was very very active. >> reporter: his skill started young. >> he would ride the bike without training wheels at three.>> reporter: by the time he was a senior he was a standout in three sports.>> he played for, baseball, track.>> reporter: he has dreams of becoming a professional athlete, several colleges expressed interest in him. his future seemed bright.>> he had a pure joy about him. >> reporter: on november 19, 2016 antwan williams wanted to celebrate, his mother says one of his top choices sent him a letter saying they were interested in him.>> he got a letter from mississippi, he was like mom me and my friends got the same letter for college we want to go celebrate. plus it was a young man's birthday.>> reporter: the party was at the south shore bowling alley in alameda, you can see him walking in.>> just a family entertainment place. just right there by the beach. i had no clue.>> reporter: no clue that 2 feuding groups would also show up that night.>> some group from oakland, some groups from berkeley and we know they did not get along.>> reporter: tensions were high all night and violence erupted just minutes after surveillance video captured antwan williams leaving the bowling alley. security footage shows him and his friends here in the parking lot behind the bowling alley about 9:00 that night. from the other and someone opened fire. antwan williams was shot in the head. >> reporter: he was taken to high