The document appears to contain biographical information about an individual named David Levi Nellis and indicates it was authored on January 12, 2016. It also references a topic called "Fundamentals of Investigation," suggesting the document may contain information related to investigative techniques or processes. Overall, the summary provides key details about the author, date, and topic of the given document in 3 sentences as requested.

1. David Levi Nellis
1/12/2016
Fundamentals of Investigation