Who wrote the episode "Confession"?
CREATE TABLE "table1_19161605_2" (
  "num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real,
  "u_s_viewers_in_millions" text
);
SELECT "written_by" FROM "table1_19161605_2" WHERE "title"='\"Confession\"';