He had been gone now without explanation for nearly two hours.

Why could he not have killed the man without explanation?

The company is written out without any explanation in late 2009.

But a little later he brought it back to me without explanation.

This morning, without explanation, the men were all set free.

He turned away without further explanation and walked back to his car.

I asked him, when he had done this several times without explanation.

People drop in and out of what might be a story line or turn up without explanation.

"How come the route was changed from one to another without any explanation?"

He was removed from office without any explanation in 1984.