IN 2016, a man known as the Grindr serial killer, drugged and murdered four young men he met on the gay dating app.

       New BBC crime drama Four Lives tells the story of Stephen Port, 46, who is currently serving a whole-life sentence.

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       Port was found guilty of the murder of Anthony Walgate, Jack Taylor, Daniel Whitworth and Gabriel Kovari Credit: PA:Press Association Who is Stephen Port?

       Stephen Port was sentenced to life in prison on November 25, 2016, for the murder of four men.

       He was trained as a chef and has been reported to have worked as a rent boy.

       The killer, now 46, is thought to have worked at the West Ham bus garage for more than 10 years.

       The Daily Mail reported one ex-boyfriend said he also worked in door-to-door sales, and he had just started a new job stocktaking before his arrest.

       Port also claimed to have spent time as a special needs teacher at a catering college in King's Cross and to have served in the Royal Navy.

       After his arrest his parents said these claims, and that of his status as an Oxford University graduate, were false.

       His mother said his school thought her son was deaf because he didn't "speak up".

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       Throughout the trial, the court heard Port, of Cooke Street, Barking, East London, was obsessed with "drug rape" pornography and this led him to drug and sexually assault gay men.

       He was a frequent user of the gay dating app Grindr, and would meet men using the app and other sites over the course of more than three and a half years.

       In August 2018, The Sun revealed he was handed ￡136,000 in legal aid to fund his defence.

       Sources close to his family have revealed Port - dubbed “The Grindr Killer”, has shown no remorse.

       Where is Stephen Port now?

       Port started serving his sentence at HMP Belmarsh in South London.

       However, he is now said to have been moved to a different jail.

       He is one of just 60 prisoners in the UK serving a whole-life sentence, which means he will die behind bars.

       Who were Stephen Port's victims?

       Stephen Port is guilty of the murder of four men with an overdose of date-rape drug GHB.

       Anthony Walgate was a 23-year-old student with dreams of being a famous fashion designer. He was found dead outside Port’s flat in Barking on June 19, 2014 Gabriel Kovari moved to the UK from Slovakia after finishing university, in the hope of becoming a translator for the NHS. He was murdered in August 2014. Daniel Whitworth was a 21-year-old chef from Gravesend, Kent. He was found in September 2014. Jack Taylor was a 25-year-old forklift truck driver. He was found dead in the same place as the previous two victims, in September 2015.

       Port had pleaded guilty to perverting the course of justice in relation Mr Walgate's death and was sentenced to eight months imprisonment.

       But, by the time he was jailed Port had gone on to claim the lives of two young men.

       Mr Kovari and Mr Whitworth, like Mr Walgate, had died of GHB poisoning and were found in an almost identical position in St Margaret’s churchyard - near Port's flat in Barking.

       The families of the victims have since spoken out, slamming "homophobic" police for failing to link the deaths of the four young men.

       A relative of Anthony said: “I totally believe that the Barking and Dagenham police that investigated Anthony’s death and the others are homophobic.

       “I genuinely believe that if Anthony had been a girl left outside like trash they would’ve put a lot more effort into it, a lot more effort.

       As they were all young boys, they did nothing.”

       It was ruled at an inquest by the Independent Office for Police Complaints (IOPC) that "fundamental failures" by police into the death of Anthony Walgate probably contributed to the death of Gabriel Kovari, the second young man to die at his hand.

       The Metropolitan Police has apologised over the "devastating" findings.

       The mother of Jack said: “Stephen Port took Jack’s life but they let that happen as far as we’re concerned.

       “They are just as guilty as him, they should be held accountable for his death as they could’ve prevented it and we have to live with that for the rest of our lives.”

       Why is Stephen Port known as the Grindr serial killer?

       Port met his victims on the dating app Grindr.

       After his arrest he was dubbed the Grindr serial killer.

       He filmed himself having sex with unconscious men, was obsessed with drug-rape pornography, and was attracted to smaller, boyish-type men known as 'twinks'.

       Port drugged his victims by spiking their drinks or injecting them in the anus with drugs which he claimed were lubrication.

       In total, 12 men are said to have been attacked by Port over three-and-a-half years, between 2012 and 2015, four of which died of an overdose of the party drug GHB.

       Families of Stephen Port victims say their deaths are 'institutional failures'

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