Police kill teacher became armed robber calabar

It appears that you're referring to a news article or incident involving a police officer killing a teacher who later became an armed robber in Calabar, Nigeria.

To provide a more accurate and informative response, I'd like to clarify a few details. Can you please provide more context or information about the incident, such as:

  1. The exact date or time of the incident
  2. The names of the individuals involved (teacher and police officer)
  3. The circumstances leading up to the teacher's transformation from a law-abiding citizen to an armed robber
  4. Any subsequent investigations or actions taken by the authorities

With this additional information, I'll do my best to provide a more detailed and accurate response.