18. The Source

Delia Rivers, an investigative television journalist/reporter goes missing from her work offices. Having left Jack multiple messages asking for 'background information', the team speculate that she might have been scared of something. When they realize that her disappearance occurs the same night as a story she produced appears on the news, they worry further for her safety, especially when they realise that the subject of her report was a notorious drug dealer, Freddie Katan. Jack and his squad also discover that Delia was working on a death row case with massive implications for the justice system, and that not only is Freddie Katan connected to the case, but an acquaintance of Jack's might have information that he is hiding for personal reasons.