The first 100 days, bills are passed, executive orders are signed, and presidencies are defined.

And for Donald Trump's first 100 days, Rachel Maddo is on MSNBC five nights a week.

Now is the time, so we're going to do it.

Providing her unique insight and analysis during this critical time.

How do we strategically align ourselves to this moment of information, this moment of transition

in our country?

The Rachel Maddow Show, weeknights at 9 p.m. Eastern on MSNBC.

A quick word before we begin.

The prime suspects in this story, Andre Lugavoie and Dmitri Kovtun,

they've always denied their involvement, as has Russia. However, a 10-year UK public inquiry

concluded that in all probability, Lugavoy and Kovtun were Russian agents, and in all likelihood

did assassinate Alexander Litvinenko,

with the knowledge of Russian president Vladimir Putin.

Russia, Lugavoy and Kovtun rubbished these findings, labeling them fake news.

And now we can begin.

This is Polonium and the piano player.

A new four-part series from Sky News storycast.

Narrated by Sky News Moscow correspondent, Diana Magne.

It's November 1st, 2006.

We're in Mayfair, London.

The five-star Millennium Hotel in

Grovenor Square, to be exact. It's coming up to half-past four in the afternoon.

...