Sister of Lord Lucan victim Sandra Rivett shares anger as Amazon documentary is set to air
![Sister of Lord Lucan victim Sandra Rivett shares anger as Amazon documentary is set to air](https://i2-prod.mirror.co.uk/incoming/article32741077.ece/ALTERNATES/s615/1_LORD.jpg)
Lord Lucan, then 39, killed 29-year-old Sandra on the night of November 7, 1974, bludgeoning her with a lead pipe after mistaking her for his estranged wife Veronica