Update 10th March: The episode is actually called "Redacted" written by Eoghan Mahoney.
The Mentalist 3.20 is called "In The Red".
The episode revolves around Heather Blue and Cole Rodney. When Ted is murdered, Heather, a do-gooder who works in an animal shelter and Cole, a mercenary soldier in Iraq find themselves in a twisting web of lies and mixed loyalties. Also watch out for Vivian Griswold. Think surveillance as you are watching.