Shannen Doherty's doctor reveals star's heartbreaking final moments in detail
![Shannen Doherty's doctor reveals star's heartbreaking final moments in detail](https://i2-prod.mirror.co.uk/incoming/article33254707.ece/ALTERNATES/s615/0_Stand-Up-To-Cancer-2016-Arrivals.jpg)
Shannen Doherty passed away on Saturday surrounded by her close friends, including her oncologist Dr. Lawrence D. Piro, who was with the actress as she took her last breaths