Final answer:
The most critical timeframe after the abduction of children is the first 24 hours, as most lethal outcomes occur within this period.
Step-by-step explanation:
Investigators agree that the first 24 hours after the abduction of children is the most critical, as 2/3 of those who are killed are killed within this timeframe. This crucial period is when law enforcement and rescue efforts are most intense and time-sensitive due to the high risk to the child's safety. Understanding the significance of this timeframe is essential in prioritizing immediate actions and resources during child abduction cases.