Sometimes you see a photograph that stops you cold.

You have to squint a bit, take a closer look, and really take in what you are seeing.

We noticed just such a photo earlier this week.

It was taken outside the Westgate mall in Nairobi, as the terrorist attack there unfolded.

In the picture, there's a man with his arms around two women.

He's walking them out of the mall.

The women both look like they're in shock.

And the man - whose face is obscured -- has a hand gun tucked into the waistband of his jeans.

It's been reported that the man is a British special forces soldier who was off-duty and having a coffee at the mall when the attack started.

That startling moment was captured by Jennifer Huxta.

She's a freelance photographer based in Nairobi.

We tracked her down to ask her about that photo and what it's been like documenting this horrific event and its aftermath