All the above are random, unconnected events - there's no PC hook to hang them on.

As often occurs, several unconnected events happened to coincide:

Two unconnected events just happening to coincide.

"It makes random, unconnected events seem like part of a plan for America to hog the road."

But precisely at the time the exchange was being negotiated, another apparently unconnected event overwhelmed Swiss authorities just as they thought they had lowered the temperature.

So we tell stories to impose causal relationships among the unconnected events of the world around us.

Two unconnected events led to Weinberger's speech.

Poirot must discover who and what are behind these seemly unconnected events.

In Uncertain Times opens with apparently unconnected events in the four corners of the universe.

Not all acts forming the basis of an actus reus are single, unconnected events.