Police have arrested three people in connection with a fatal shooting outside a west Omaha nightclub last month.  24-year-old Delayno Wright died after he was shot outside the Halo Ultra Lounge on Sept. 3.  24-year-old Avery Tyler, of Omaha, has been arrested on suspicion of first-degree murder and using a weapon to commit a felony.  Two others - 28-year-old Romesha Fountain and 20-year-old Jelani Johnson - are suspected of helping Tyler with the shooting.