Final answer:
The daughter was not murdered in 'Murder on the Orient Express'; instead, the storyline involves the murder of a kidnapper and child murderer named Ratchett. The provided texts discuss various other unrelated motives for murders of daughters or young girls, such as jealousy and anger.
Step-by-step explanation:
The question "Why was the daughter murdered in Murder on the Orient Express?" seems to be a bit of a mix-up, as the actual plot of Agatha Christie's famous novel doesn't involve the murder of a daughter. Instead, the story revolves around the murder of a character named Ratchett, who is later revealed to have been involved in the kidnapping and murder of a little girl named Daisy Armstrong.
The passengers on the train have ties to the Armstrong family and orchestrate Ratchett's murder as an act of justice for Daisy. The details provided reference various other contexts where daughters or young girls are killed for reasons ranging from jealousy to neglect, and vengeful acts or collateral damage. These examples illustrate different motives for murder like jealousy, anger, or fear of power, none of which directly relate to the plot of Murder on the Orient Express.