To commemorate the 25th anniversary of John Lennon's death, a documentary made by journalist Tom Brook will be shown on the BBC.
John Lennon was shot dead on 8 December 1980
Brook was on the scene shortly after the fatal shooting that claimed Lennon's life. He reported for BBC Radio 4's Today programme, which was the first major British news outlet to report the shocking killing.
In the documentary, One Night In December, a number of celebrities and cultural commentators share their thoughts on the former Beatle.
Sir Paul McCartney was Lennon's song writing partner in the Beatles
"It was terrible, it was early in the morning for us and I got a phone call from the manager who said, you know, 'Are you sitting down?'.
"He told me and it was just terrible.
"It was a terrible shock because it was the end of an era of friendship for me. "
DAME JUDI DENCH
"It was as much of a shock as hearing that John Kennedy had been assassinated.
"There are certain things you remember and you think, I'll never forget that or the moment or what I was doing."
"Well he's still alive. He's still with us. His spirit will go on you know.
"You can't kill a person that easy.
"That's the way I feel about it."
ANTHONY DECURTIS, MUSIC JOURNALIST
"I think as long as people care about popular music and history, John Lennon will be an important figure.
"The Beatles changed culture. Period. Lennon was a tremendously important songwriter.
"If everything about his life was erased apart from his songs, Lennon would live forever.
"But, as Lennon was somebody whose life became an important part of his art, he became a symbol of a certain kind of awareness, a certain way to live your life, independently, creatively, in an engaged way.
"And so, for all those reasons, as long as anybody cares for any of those, John Lennon is going to be a hugely important figure."
Actor Matt Dillon was touched by Lennon's love of New York
"I was at home, sleeping on my parents' sofa when I heard the news.
"John Lennon was a New Yorker, you know. Really he was a New Yorker.
"I mean I know he was a guy from Liverpool but, I think from what I understand, he really loved New York."
SIVA VAIDHYANATHAN, CULTURAL HISTORIAN
"John Lennon had been one of the five most important citizens for twenty years before that.
"There weren't a whole lot of people more famous, Pele maybe, Muhammad Ali.
"He stood for a certain vision of the world that many of us shared and still share and he stood as a major cultural icon who produced music that made us dance.
"For so many reasons he was deeply important."
One Night in December is being screened BBC News 24 at 2130 GMT on 8 December, at 1030 on Saturday 10 and at 0530 and 2330 on Saturday 11. It is on BBC World at 1430 and 2230 on Saturday 10 and 1030 and 1830 on Sunday 11.