A video posted on Facebook by Sierra Leone's first lady shows one of Europe's most wanted cocaine traffickers seated in a pew at a New Year's Day mass last year, in the presence of President Julius Maada Bio, according to the source material.

People eventually recognized the figure in the video as "Bolle Jos," the fugitive Dutch drug lord. His real name is Joseph Johannes Leijdekkers, and he is a convicted prolific smuggler.

Europol considers Leijdekkers a most-wanted criminal and a "key player," the source material states.