1. Founder of Market & Opinion Research International Ltd (now Ipsos MORI), Sir Robert Worcester walking
2. SOUNDBITE (English) Sir Robert Worcester, Founder of Market & Opinion Research International Ltd:
"The assassination of the member of parliament (Labour MP Jo Cox) is something that will strike at the heart of this country. This is not a country with guns, this is not a country that knows assassinations. And I believe it's going to be very important for the outcome of the referendum (UK's referendum on staying in the EU). As close as it looks at the moment depending on how each side responds. And it doesn't have to be necessarily one of the leaders of the response, if they mishandle this, this country will rebel and I would not be terribly surprised if one or another of the party leaders of the 'In' campaign or the 'Out' campaign mishandles it. And I think that would be a mistake that will make the difference on the 23rd of June."
3. Cutaway of Worcester's hands
4. SOUNDBITE (English) Sir Robert Worcester, Founder of Market & Opinion Research International Ltd:
"I do not believe that the 'Remain' (pro-EU) camp leadership will blow it. After all, the leader of the Conservative Party and Prime Minister David Cameron, the Chancellor George Osborne, the leader of the Labour Party Jeremy Corbyn will be very cautious with the way they handle this. But Nigel Farage, the leader of UKIP, United Kingdom Independent (meaning Independence) Party who wish Britain out (of the EU), that's their main theme, he gets a lot of coverage and he tends to shoot from the hip. He might be called the Donald Trump of Great Britain at the moment in this referendum election."
5. Close of Worcester
6. SOUNDBITE (English) Sir Robert Worcester, Founder of Market & Opinion Research International Ltd:
"It could be very helpful to those who wish to stay in the European Union, if, for instance, Nigel Farage, the leader of United Kingdom Independent (meaning Independence) Party were to mishandle it and try to take advantage of what has been such a terrible situation."
A veteran pollster told the Associated Press on Friday that the murder of British opposition MP Jo Cox would have an impact on the outcome of the UK's EU referendum.
Sir Robert Worcester, founder of Market & Opinion Research International Ltd (MORI), which later merged with Ipsos UK to form survey company Ipsos MORI, also said anti-EU politician Nigel Farage was like "the Donald Trump of Great Britain".
Farage is head of the anti-EU UK Independence Party (UKIP).
Cox was shot and killed in Birstall, northern England on Thursday. Her attacker is in police custody.
The UK votes in a referendum on staying in the EU on June 23.