Because the defendant committed his offense when he was 15 years old and his case was not yet final, the defendant was entitled to the benefit of Senate Bill 1391. The Court of Appeal, therefore, remanded the matter to the juvenile court, instructing the court to deem the criminal convictions and enhancements to be juvenile adjudications as of the date of the verdict. At that time, the juvenile court should also consider exercising its discretion to strike the firearm enhancements (pursuant to Senate Bill No. 620).