Patricia Dianne Krenwinkel (born December 3, 1947) is an American murderer and a former member of Charles Manson's commune, known as the Family . During her time with Manson's group, she was known as various aliases such as Big Patty , Yellow , Marnie Reeves and Mary Ann Scott , but to The Family she was most commonly known as Katie .Following the death of fellow Manson gang member, Susan Atkins, Krenwinkel is now the longest-incarcerated female inmate in the California penal system.