Infamous killer David Berkowitz, also known as Son of Sam, murdered six people in New York City in the 1970s.
Born to a Jewish mother, Berkowitz was adopted by Jewish-American parents when he was only a few days old. His adopted mother, Pearl Berkowitz, died when he was a teenager and her passing deeply affected him. He later searched for his birth mother. Eventually, he found her—a woman named Betty Falco—but he didn't receive the warm welcome he expected.