My response would be to cite the number of people killed in car accidents on that day. On average, 120 people die in car accidents every day, day after day, week after week, etc. And another 200,000 people are hurt, maimed, disabled every year due to cars.
I ask people if they can name someone hurt in a car accident that they know - everyone knows someone. Then I ask them to name someone they know that was hurt by a gun. I've yet to get an answer.