Final answer:
Determining the victims of serial murder can be challenging due to factors such as lack of eyewitnesses or physical evidence, the complex nature of investigations, and the absence of identifiable remains. Serial killers carefully select victims and operate across different jurisdictions, making it difficult to establish patterns.
Step-by-step explanation:
Determining the victims of serial murder can be difficult due to a variety of factors. One reason is the lack of eyewitnesses or physical evidence linking the victims to the crime. Serial killers often carefully select their victims, targeting individuals who are vulnerable or who won't be easily missed. This can make it harder to establish a clear pattern or connect the murders.
Another factor is the complex nature of serial murder investigations. Serial killers often operate in different jurisdictions and target victims from various backgrounds, making it challenging for law enforcement to identify a common link. It can take time to connect cases and recognize a pattern of similar characteristics or circumstances.
Additionally, the nature of serial murder itself can create difficulties in determining victims. Serial killers may not always leave behind identifiable remains or evidence, making it harder to ascertain the number of victims or even to determine if a crime has occurred in the first place.