Final answer:
The title 'Midday Murderer' does not correspond with any well-known serial killer in German history. The most appropriate answer is 'Cannot be determined' as the nickname provided is neither a documented historical figure nor is it associated with a known killer like Jack the Ripper, who was active in London. Thus, the correct option is 4.
Step-by-step explanation:
The German killer nicknamed the 'Midday Murderer' is a title that does not correspond with any well-known serial killer. The options provided include John Doe, which is a placeholder name often used to refer to an unknown or unidentified person. Jack the Ripper, who was a notorious unidentified serial killer in London, not in Germany, during the late 19th century, and is not known as the 'Midday Murderer'.
The Midday Murderer, which is not a well-documented nickname and could be a fictional or less known name. Cannot be determined, which is likely the most appropriate answer given that there is no widely recognized historical figure known as the 'Midday Murderer' in German criminal history. Therefore, the correct option is 4) Cannot be determined