Complex sentence: While there, a policeman tries to frame him for the murders comitted by Jack the Ripper, though, after being chased down the street by rampaging locals, he manages to escape back into modern times.
Split into simpler sentences: While there, a policeman tries to frame him for the murders committed by Jack the Ripper. After being chased down the street by rampaging locals, he manages to escape back into modern times.