No, Brenna was a puzzle, and one he thought it might be best to leave unsolved.

Additionally, it is claimed that police described one of the deaths as "a mystery better left unsolved."

"I ask authorities of this country that this crime not be left unsolved, to investigate," he said.

Is there ever a final exit from a problem that was left unsolved?

Then again, maybe some mysteries are better left unsolved.

If the discovery seemed like the opening scene of a murder mystery, it is one that Japan prefers to leave unsolved.

"Perhaps some mysteries are best left unsolved," said Nechayev with a wry smile.

He called roof strength "the primary safety issue left unsolved."

There had been two or three hundred pieces left unsolved the previous evening.

Next, I shall discuss some difficulties which it either generates or leaves unsolved.