Cathlyn Platt Wilkerson (born in 1945), known as Cathy Wilkerson, is an American radical who was a member of the 1960s radical group called the Weather Underground. She came to the attention of the police when she was leaving the townhouse belonging to her father after it was destroyed by an explosion on March 6, 1970. Members of the Weathermen had been constructing a nail bomb in the basement of the building, intended to be used in an attack on a non-commissioned officers dance at Fort Dix, New Jersey that night. Wilkerson, already free on bail for her involvement in the Chicago "Days of Rage" riots, avoided capture for 10 years by hiding under an assumed name. She turned herself in to police in 1980, pleaded guilty to unlawful possession of dynamite and was sentenced to up to three years in prison.
That evening, a man's body was found in the basement of the townhouse, and a short time later, a woman's torso was discovered on the first floor. Police also found several handbags with personal identifications that had been stolen from college students over the previous few months. Over the next few days, police discovered at least 60 sticks of dynamite, a live military antitank shell, blasting caps and several large metal pipes packed solid with explosives and nails as shrapnel.
Three members of the WUO were killed in the explosion. They were Theodore Gold, who was 23 years old and a leader of a student strike at Columbia University in 1968. Another former college student, Diana Oughton, was also killed in the explosion. Seven days later, the police found the body of another member of the Weathermen, Terry Robbins. Cathy Wilkerson and Kathy Boudin stayed overnight at her parents' house a few blocks away on St. Luke's Place before they both went underground. Her father, who owned both houses, was on vacation in the Caribbean. She was charged, in absentia with illegal possession of dynamite and criminally negligent homicide and eluded capture for 10 years.