
Worst, Daisy wasn't Cassetti's only victim, as he'd done similar in previous kidnapping cases and Linda Arden confesses orchestrating his murder to also spare any more children from that fate.
The first few passages of the story - and the motive for Cassetti's murder - are horrifying on their own, but they might be especially hard on parents. Indeed, several of the people involved in Cassetti's execution are avenging her just as much as Daisy.
note This is also something that happened in the Lindbergh case. Only afterwards was it officially proven that she wasn't involved.
Acquitted Too Late: The Armstrong's maid was suspected of being involved in the kidnapping of Daisy and Driven to Suicide by this.
Murder on the Orient Express provides examples of: