TV tonight: the motivations of Britain’s longest-serving murderer

What Makes a Murderer
9pm, Channel 4

Is it nature or nurture that makes people kill? This is the somewhat fantastical question posed in this three-parter, examining the motivations of Britain’s longest-serving murderer, John Massey. Massey is subjected to genetic and psychological examination by experts to see what exactly drove him to kill a nightclub bouncer in 1975. It is humanising in parts – especially when Massey confronts his childhood – yet the biological tests can be objectifying in their search for a definitive answer. Ammar Kalia

Tonight: The Leader Interviews – Nigel Farage
7.30pm, ITV

He was peripheral at the start of the election campaign but, now he has shown his hand, the leader of the Brexit party will play a major part. He will be asked here why, having said Boris Johnson’s deal was “a false Brexit”, he decided not to challenge any Tory MPs’ seats and instead only contest others. Jack Seale

Inside the Supermarket
8pm, BBC One

Episode three of the obs doc-meets-promo for the big orange grocery chain. There is innovation in the air with a till-free pilot store – but will anyone be bothered to download the app? Plus, long-serving cashier Jenny gets a surprise as part of the company’s 150th anniversary. Hannah J Davies

The Secret Life of the Zoo
8pm, Channel 4

It’s back to Chester zoo, where this week the team are expecting new arrivals in the giraffe herd and among the pheasant population, and there is drama for camel couple Mei-Li and Becky when the latter undergoes a procedure for a suspected tumour. Anthropomorphic thrills galore. AK

Gino’s Italian Express
8.30pm, ITV

Everyone’s favourite This Morning chef returns to his homeland for another series of meandering culinary japes. This time D’Acampo is taking the train, starting in the French Alps and Italy’s rural north before reaching Turin, where he whips up fettuccine pasta with pork mince. Bellissima! AK

Britannia
9pm, Sky Atlantic

The “18-rated Asterix” continues, as superdruid Veran tells Ania that she must give up her child in order to serve the gods. Meanwhile, “the unquiet souls of the dead” launch an attack on General Aulus’s compound. Or are they just furious Celts? (“Ghosts don’t need sewers to get in and out, do they?”) Ali Catterall

Film choice

The Howling 12.55am, Horror Channel

Along with John Landis’s An American Werewolf in London, Joe Dante’s shocker made 1981 a great year for bestial horror films. Full of biting good humour, it has Dee Wallace as a newscaster on the verge of a breakdown and packed off to a Californian retreat, where something nasty lurks in the woods. Paul Howlett

Sport choice

Golf: European Tour Day one of the DP World Tour Championship event. 7am, Sky Sports Main Event

International tennis: Great Britain v Kazakhstan A Group E match at the Caja Mágica in Madrid. 10am, Eurosport 1

NFL: Houston Texans v Indianapolis Colts Coverage of the AFC match. 12.30am, Sky Sports Action