It's possible that:
* The name is misspelled. Double check the spelling.
* The person is not publicly known. There are many people with the same or similar names, and information about their deaths might not be widely available.
* The information is private. Families may choose not to publicly share information about a death.
If you have more information about Kristen Feilberg (like a location or a potential date), it might be helpful to refine your search.