Nnamdi Okeke successfully completed the online non-credit course "Terrorism and Counterterrorism: Comparing Theory and Practice" offered through Coursera and authorized by Universiteit Leiden. The certificate confirms Nnamdi Okeke's identity and participation in the course, which was directed by Professor Dr. Edwin Bakker of Universiteit Leiden's Centre for Terrorism & Counterterrorism located at the Faculty Campus The Hague.