Shannen Doherty Shaves Head in Cancer Battle

Shannen Doherty , the “Beverly Hills 90210“ star -- who has been detailing her breast cancer battle on social media -- shares photos of her shaved head. SUBSCRIBE to GMA ► To read the full story and others, visit Good Morning America (GMA) brings viewers an award-winning combination of breaking news, exclusive investigations, hard hitting interviews, weather forecasts, cutting edge medical field informati