unknown person

Even if the person who bought the gun is identified, he may just say he sold the gun to an unknown person.

A criminal investigation has also been launched, targeting the editor of Closer and the unknown person who took the pictures.

The chemical Luminol did not identify any traces of an unknown person, according to the forensic scientists.

Consequently, we could not ascribe these deaths to a desire for plunder on the part of some unknown person.

And then he would go relentlessly on, pursuing some unknown person who was even more shadowy than himself.

We had been talking of that Egyptian witchcraft by which an unknown person is said to be seen in a child's hand.

Habituated by servitude to mistrust, he feared to be deceived by the promises of an unknown person.

It seems he'd made a large loan without security to an unknown person, and the bank examiner was coming to-day.