Deckard tracked Roy to a vacant floor in a tall building, and it was there where they fought to the death.

Source: https://screenrant.com/deckard-replicant-could-survive-blade-runner-alone-anime/

Despite being a "blade runner" in charge of catching Replicants, Deckard continuously underestimates their abilities.

Source: https://screenrant.com/sci-fi-movies-character-dumb-decision/

Director Ridley Scott’s 2007 final cut gives the most definitive answer by inserting a moment in which Deckard dreams of unicorns, implying that he and Gaff are both replicants who have had the image implanted in their minds.

Source: https://screenrant.com/confusing-scifi-movie-endings/

Its noir plot seems simple: Rick Deckard (Harrison Ford) is sent to track down and kill four androids known as "replicants."

Source: https://www.cbr.com/best-robot-movies-ranked/

Retired police officer, Rick Deckard () is forced by his former boss to eliminate four Replicants who escaped from the colonies and returned to Earth.

Source: https://collider.com/science-fiction-movies-everyone-should-see-reddit/

Screenwriter Hampton Fancher wrote Deckard as a human, but enjoyed playing with the possibility of the blade runner being the very thing he’s tasked with hunting.

Source: https://gamerant.com/blade-runners-ending-explained/

The first film follows Deckard, a Blade Runner charged with bringing down murderous replicants, synthetic beings created by the Tyrell corporation.

Source: https://www.cbr.com/great-movies-that-are-box-office-failures/

Twenty years after the Worldstone’s destruction, Deckard Cain predicts the next hellish invasion while raising his adopted daughter Leah.

Source: https://screenrant.com/diablo-4-story-plot-synopsis-nephalem/