User blog comment:BeastMan14/FBI vs KGB: Fox Mulder and Dana Scully vs Ellizabeth and Phillip Jennings/@comment-5795750-20130420161547/@comment-4803039-20130420172222

Mulder was also a Criminal Profiler before the X-Files as well, one of the main reasons he was involved with the case in 'The End' in the first place.