The Chain of Life and Death

S1 E5: A 94-year-old woman dies in the hospital after having a convulsion. The case becomes the business of the medical examiner's office when no one will sign her death certificate. Dr. G finds no evidence of a heart attack or stroke. Could the woman's death be related to a childhood incident where she drank lye soap, or was it a complication of her recent hip surgery? A 24-year-old man falls off his bicycle onto the street and subsequently dies. He wasn't wearing a helmet, but a witness to the accident reported that the cyclist seemed to collapse before crashing. His mother says that prior to the accident, the man was acting as if he knew he was going die. Did he die from a head injury, was his death the result of his preexisting heart condition, or could he have been engaging in high risk behaviors that his family was unaware of? A 28-year-old stripper collapses in her home and refuses to go to the hospital. Later, she is found dead in bed. Her brother reveals that the woman used be a man, but recently had a sex change. Needle marks are found on her breasts, but no drugs are found in her system. Dr. G finds that silicone leaks from the puncture marks, but the woman had no breast implants. Had the woman been injecting her breasts with silicone, and did this somehow cause her death?