Viewers interested in true crime and medical mysteries should watch this video.
In 1989, a California hospital experienced a series of unexplained patient deaths, baffling staff for over a decade.
In 1998, patient Trisha Johnson's condition stabilized after a critical event, but she died suddenly after her husband left the room.
John Schwartz, recovering from a hip replacement, was found dead on the floor after a sudden decline in vital signs.
Sarah Athari, improving on respiratory support, experienced a sudden respiratory and cardiac arrest before her scheduled discharge.
Bob Baker noticed a pattern of patients improving then suddenly dying, finding a used syringe and anesthetic vial.
Jane Coyle experienced a sudden drop in blood pressure and respiratory arrest, but miraculously recovered after resuscitation.
An anonymous caller named Jeff Brandon accused respiratory therapist Evelyn Salvador of helping patients die, leading to an investigation.