Another day another epitome of a bad mother!:
A city schoolteacher, convinced her cop husband had cheated on her, allegedly murdered their two kids - poisoning them, then sealing their Bronx apartment's windows with plastic before turning on the gas, sources told The Post yesterday.
Lissette Bamenga, 29 - who slit her wrists in a suicide attempt during the Thursday horror - believed Officer Trevor Noel had gotten another woman ...