Usman Durrani has been convicted at the Old Bailey of murdering literary agent Rod Hall at his Prioress Street flat.
Judge Gerald Gordon sentenced Durrani to life imprisonment and ruled that he should serve a minimum of 12 years.
The Rod Hall Agency is a specialist literary agency that represents writers for film, television and theatre.
Well-known clients include Simon Nye (Men Behaving Badly), Liz Lochhead and Dario Fo.
Rod Hall grew up in rural Sussex where Vivien Leigh was his next door neighbour. In 1978 he created the UK's first film & television tie-in department at Penguin Books, beginning with Waterhsip Down. In 1984 he established the Film, Television & Theatre Department at AP Watt, where he set up projects including Jeeves & Wooster, Just William, Dalziel & Pascoe, Casualty, Babe, The Full Monty and Mrs Brown.
In 1997 Hall left AP Watt with his colleague Clare Barker to create the Rod Hall Agency.