Dr. Robert Spencer was an illegal abortionist who operated before Roe Vs. Wade. He did over 100,000 abortions over the years.
According to his biography, he was devastated when, as a child, he accidentally killed a duck:
“Robert [Spencer] had convinced his father to buy him some baby ducks. He delighted in herding them around the yard with a stick. One day, he accidentally struck one of them too hard in the head, killing the duckling. For days he was inconsolable. He made a vow never to mistreat another animal.”
Vincent J Genovese The Angel of Ashland: Practicing Compassion and Tempting Fate (Amherst, New York: Prometheus Books, 2000) 18
He would go on to kill 100,000 babies and leave 100,000 women emotionally (and sometimes physically) scarred for life.
Baby at 8 weeks, before and after abortion

