Execution (The Twilight Zone)
"Execution" is episode 26 of the American television anthology series The Twilight Zone. It features Albert Salmi, who also plays the lead character in the Season 4 episode "Of Late I Think of Cliffordville".
Opening narration
Plot
In 1880, an outlaw cowboy named Joe Caswell is about to be hanged for murder. But as the noose tightens around his neck, he suddenly disappears...and finds himself in 1959, in the laboratory of Professor Manion. Manion explains that he used a time machine to pluck Caswell from the past. But when Manion sees Caswell's rope burns around his neck, and hears his admission that in his life he had murdered over twenty men, he knows he must try to send Caswell back.
The discussion leads to an argument. Caswell attacks Manion, killing him with a desk lamp. He then flees from the laboratory into a busy street, but becomes so overwhelmed by the lights and the noise that he returns to the lab. Caswell, distraught and desperate, breaks down, pleading for the dead scientist to help him.