Deputies who shot and killed knife-wielding man were part of extra patrols, METRO saysHOUSTON, Texas (KTRK) -- Authorities are investigating after a police officer shot and killed a man at the METRO Northline Transit Center on Fulton on Wednesday evening. They say two Harris County Sheriff's deputies shot a man who exposed himself on a train, and then cut one of the deputies with a knife. METRO confirms the deputies were working at the site as part of METRO's Safety Partnership Initiative to keep riders safe. On Thursday afternoon, METRO confirms with ABC13 that the deputies involved in Wednesday night's shooting will not be patrolling for METRO while the investigation is underway. Law enforcement says deputies shot the man after they say he pulled a knife and cut one of the deputies on the hand.