Rachel Nickell and her son Alex Hanscombe in 'The Murder of Rachel Nickell'.

I watch a lot of true crime. Like many people, I am fascinated by the psychology, the investigations and the search for justice. But now and then, a documentary comes along that reminds you there are real people behind the headlines.

Netflix's "The Murder of Rachel Nickell" is one of those documentaries.

The film revisits the murder of 23-year-old Rachel Nickell, who was attacked and killed on Wimbledon Common in London in 1992 while walking with her two-year-old son, Alex Hanscombe.

André Hanscombe and Alex Hanscombe in 'The Murder of Rachel Nickell'.