Who Killed Sara, is a popular Mexican mystery series and a Netflix original. The show first starts with the death of Sara Guzman, as she falls to her death due to a malfunction in her parasailing harness. Her brother, Alex, was wrongfully blamed for her death and goes to jail for a long time. The story begins with Alex getting out of jail and persecuting the people whom he thinks are responsible for his sister's death. He goes after the Lozcano family, and the story gets complicated from then on. In his search for the truth, he discovers hidden family secrets that lead him to uncover who Sara was and ends up questioning the reason behind her death.
https://www.youtube.com/watch?v=-sdHVQUB1d8&t=29s