Marred by grief and riddled with fear, a quiet city worries where a mass shooter might be  CTV NewsMichael Paul Brown, suspect in Montana shooting, arrested by cops  BBCMan accused of killing 4 people at Montana bar is in custody following weeklong multiagency manhunt  CNNMontana bar shooting suspect taken into custody after weeklong manhunt  ABC NewsSearch for the bar shooter who killed 4 is Montana’s highest priority, governor says  AP News