Miss Detective Carter on Person of Interest? Well, we've got good news for you!The April 14 episode of the CBS drama will feature the return of Joss Carter (Taraji P. Henson) for a one-episode guest spot, TVGuide.com has learned exclusively. Carter was last seen on the show in Season 3, when her investigation into corrupt cop organization HR got her killed.Check out all this week's Mega Buzz scoop!Carter will appear in flashbacks during an episode that finds Reese (Jim Caviezel) going solo on a perilous and personal journey to solve a cold homicide case Carter was never able to close. Will John be able to take care of her unfinished business? (Check out an exclusive image and script page below!)