A sentence stop is the British name for a period at the end of a sentence.
The correct grammar for the sentence is "when the killing stops." In this case, "stops" should be in its base form because it follows the auxiliary verb "when."
Incomplete, you wouldn't want to start a sentence with a preposition.
it signifies the meaning of the sentence
To show you've finished a sentence.
The electricities resistance stops the electric circuit.
To be in the vicinity is to be in the surrounding area. An example sentence would be: Any time he is in the vicinity, he stops by.
One because a sentence only stops with a full stop and if yiu stop that's one.
To mark the end of a sentence. It guides the reader on when to pause.
It stops your sentence so you can start a new one
When the rule of law stops, anarchy begins.
Itinerary - route (often with details of stops, etc).
The rattle snake stops rattling when the strike is imminent.