I Can’t, part 2. Luke and Reid begin the episode snogging but Luke, remembering comatose Noah, freaks out and bails mid-snog. Reid returns to the hospital to find Luke at Noah’s side, checks Noah’s vitals and sadly tells Luke to be there for Noah.
Henry: Don’t you remember that doctor in England, the one that turned out to be a serial killer?
Reid: Harold Shipman. I examined his brain as part of a neurological study into the origins of evil. Don’t worry. I haven’t used what I learned to kill anyone – yet.
— Henry and Reid