David Grann

Interestingly enough, his...

His first name, Jacek, translates to Jack, and his last name, Robleski.

The first part is Sparrow, so people called him Jack Sparrow after the Hollywood movie Pirates of the Caribbean.

And he used to like to say, rather than being a sparrow, he says, I'm an eagle.

When he first began looking at the case, he had very little, but he kept reviewing the file over and over.

He put it away.

He'd pick it back up.

One thing that occurred to him, he had one suspicion, which was when he was looking at the way the body had been abused, the way this kind of cat's cradle, the way the body had been positioned, made him think that there was some kind of personal animus that drove the perpetrator or perpetrators involved.

He did notice one clue or it was the absence of a clue, which was Jacek had a cell phone, but there was no report of a cell phone in the file.

So he began to say, can we trace, can we figure out what had happened to that cell phone?

At that time in Poland, telecommunications and that kind of technical investigation was still pretty primitive.

But he was able to get a serial number of the cell phone from the widow and

And lo and behold, that cell phone turned out to have been sold on an internet auction just days after the murder.

And not only that, he was able to tell that the person who had sold this was somebody who had identified themselves as Chris B. Chris B. turned out to be a man named Christian Bala.

And Jacek is aware that it's a very tenuous lead.

I mean, in the sense that he doesn't know how this Christian Bala obtained the phone.

He may have found it on the street.

He may have bought it at a pawn shop.

But it is the only lead he has.

And he has to figure out who is this person.