It's possible that:
* The name is misspelled: Perhaps you're thinking of someone with a similar name.
* The individual is not publicly known: It's possible this is a private citizen not involved in public life.
To get more information, you may want to:
* Check for common misspellings.
* Provide more context. For example, where did you hear this name? What was the context?
* Use a search engine. While "Ivan Kagame" might not turn up results, you can try searching for variations of the name or additional information you have.
Let me know if you have any additional information that could help narrow down the search!