15 years ago, 23-year-old Norwegian student Martina Vic Magnuson was killed in an apartment near Mayfair.

23-year-old Martinevic Magnuson was found partially buried in the basement.

Before being questioned, the only suspect in the case had fled the UK to Yemen.

I made a promise to Martina's family to find out what happened.

Murder in Mayfair, part of the documentary, find it wherever you get your BBC podcasts. Hello, I'm Stefania Gotzer. Welcome to Business

Daily from the BBC. In today's program, we're talking about blueberries. The fruit's popularity has skyrocketed in the last decade, but do you know where the ones you buy come from?

Peru exports around almost $1.5 billion of blueberries, and that's being the largest exporter in the world.

In only a few years, Peru in South America has gone from having virtually zero blueberry

plantations to claiming the title of the largest blueberry exporter in the world.

We used to grow cotton, wine grapes, lima beans and chickpeas.

Now that everything is more modern, we're seeing blueberries in the fields.

I arrived at this farm without knowing what a blueberry plant was.

So how did this happen? We'll be finding out.

Peru in South America is a country rich in natural resources.

Potatoes, tomatoes and many other popular crops are believed to have originated here.

But lately, there's a different crop that is spreading across the country's fields.

An imported one.

I'm talking about blueberries.

Ten years ago, it was hard to find blueberry plantations in Peru.

This fruit is from North America, and most Peruvians had never tasted it.

But now Peru is the largest exporter of blueberries in the world.

How could this happen so fast?

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