Noe Nino de Rivera was tased after trying to break up school fight , court documents say . Taser was placed into medically induced coma for Friday , entered rehab facility 52 days . Family files suit against officer who tased him , is calling for end to Teen use in schools . Police union director tells Texas Appleseed affiliate teen was coherent , apologizing after incident .
Noe Nino de Rivera was tased after trying to break up school fight , court documents say . Teen was placed into medically induced coma for 52 days , entered rehab facility Friday . Family files suit against officer who tased him , is calling for end to Taser use in schools . Police union director tells CNN affiliate teen was coherent , apologizing after incident .