The Brief Authorities identified Junior Cee Niko Semo, 19, as a primary gunman in the fatal weekend shooting at the Bite of Seattle festival. 19-year-old Junior Cee Niko Semo has been identified by authorities as one of the primary gunmen in the deadly shooting at the Bite of Seattle festival over the weekend. The incident and suspectsAt least 3 shooters involved: Police believe a 15-year-old suspect, 19-year-old Junior Cee Niko Semo, and "at least one other unknown suspect" were involved in the shooting. 19-Year-Old Suspect Killed: Junior Cee Niko Semo died at the scene and is suspected of being involved in a gunfight with the 15-year-old. FatalitiesJunior Cee Niko Semo, 19 – Died at the scene.