CREATE TABLE table_16457 ("No. in season" FLOAT, "No. in series" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "U.S. viewers  ( million ) " TEXT)

What was the titles of the episodes written by ken lazebnik?
SELECT "Title" FROM table_16457 WHERE "Written by" = 'Ken LaZebnik'
SELECT "Title" FROM "table_16457" WHERE "Written by" = 'Ken LaZebnik'