Do you have information that could help investigators?
Cold cases include missing persons, accidents or crimes that have yet to be solved and have no active leads. New information could come from new witness testimony, new or retained physical evidence, activities of a suspect, or other sources.
Please scroll through this roster of cold cases being investigated by Special Agents of the NPS Investigative Services Branch. If you're looking for information about a case not listed here, please see the NPS News page. You may filter news releases by keyword and/or by location. You may also contact a park or site directly - use the "Contact Us" link at the bottom of each National Park Service site's official page.