NEW : Both suspects are believed to be involved in gangs , police say . * : Police did n't provide further details on second suspect . NEW : First suspect Akein Johnson faces 20 charges of attempted second - degree murder . NEW : Three of the 19 shooting victims are still in critical condition , police say .
NEW : Both suspects are believed to be involved in gangs , police say . NEW : Police did n't provide further details on second suspect . NEW : First suspect Akein Scott faces 20 counts of attempted second-degree murder . NEW : Three of the 19 shooting victims are still in critical condition , police say .