BERKELEY, MO (KMOX) - A double fatal shooting on board a Metro Bus Monday afternoon is being handled by the Major Case Squad. This happened in Berkeley in the 83-hundred block of Airport Road. Witnesses told police, a man fired shots into the bus, hitting the two victims. Major Case Squad investigators took a person of interest into custody. In-custody warrants are being applied for Tuesday. Investigators are asking anyone with information about the shooting to call CrimeStoppers at 1-866-371-TIPS (8477). Callers may remain anonymous and may be eligible for a reward.