It's possible there are individuals with this name who are notable in specific fields or communities, but without more information, it's impossible to provide a biography.
To help me find a specific Paul Langan, please provide more information, such as:
* His profession or field of expertise: Is he an artist, musician, scientist, entrepreneur, etc.?
* His location: Where does he live or where was he born?
* His area of notoriety: Is he known for a specific achievement or event?
With more context, I might be able to find the Paul Langan you are looking for and provide a biography.