Question

which u.s. presidents assassination was influential in the creation of the creation of a federal law agency?
harrison
mckinley
lincoln
kennedy

Explanation:

The assassination of William McKinley in 1901 led to calls for a centralized federal law enforcement agency. This event was a key factor in the creation of the Federal Bureau of Investigation (FBI, initially the Bureau of Investigation) to address gaps in federal law enforcement related to such national threats.

Answer:

McKinley