Good Thing This Is A Movie

I have not had time to go through all of the posts so this may already be covered. Most of these characters would not have gotten in the FBI to begin with and certainly most would not have gotten to profiler training. I am retired from law enforcement in the Federal Government and I can assure that applicants are checked back to their childhood and through creditors and ex mates etc. I don't think a serial killer (Lucas) could have covered his tracks good enough to get this far into the FBI. I saw a similar movie in the 2000's of a group of law enforcement trainees on an island getting the same treatment. I remember Katheryn Erbe being in it because it was the beginning of her career and she was the first character killed. I can't find it so maybe I am thinking of someone else instead of her. Please enlighten me. BTW-Mindhunters was a good movie.