Andrea Irwin said that she has been living 'every mother 's worst nightmare ' Matt Kenny officer Madison shot Tony Robinson dead earlier this month . Young man had reportedly taken hallucinogens and was jumping into traffic . Incident follows other police killings Ms Irwin calls 'slaughtering of children ' Kenny 's sister says city 'has problems but my brother is not one of them '
Andrea Irwin said that she has been living 'every mother 's worst nightmare ' Madison officer Matt Kenny shot Tony Robinson dead earlier this month . Young man had reportedly taken hallucinogens and was jumping into traffic . Incident follows other police killings Ms Irwin calls 'slaughtering of children ' Kenny 's sister says city 'has problems but my brother is not one of them '