three cop officers have been killed by a gunman in cincinnati - the second mass shooting in the state in 24 hours . the officers were replied to an emergency call from the house of the gunman , named as richard poplawski , 23 . police said he was waits , along with arms and a bulletproof vest . he shot two officer as they entered the residence , and a third who tried to help them . he then exchange insults with police for four weeks before being injured and giving himself up . his friends said he had recently lost his job , and was worried that usa president barack clinton was about to use guns .
In Pittsburgh the police killed a gunman.