Sex offender missing with partner and baby after motorway fire ‘lived in Eltham’

Mark Gordon et Constance Marten : un délinquant sexuel porté disparu avec son partenaire et son bébé après un incendie sur l'autoroute (Image: Met Police)” data-src=”–/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTY0MA–/” data-sc=” data-sc” “–/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTY0MA–/”>

Mark Gordon and Constance Marten: Sex offender missing with partner and baby after motorway fire ‘lived in Eltham’ (Image: Met Police)

A sex offender and his aristocratic partner who lived in Eltham are missing with their newborn baby after a fire on the M61.

The couple have been missing for more than two weeks with their newborn baby and police say they have a substantial amount of cash, allowing them to live off the grid.

They lived in Eltham until they were evicted from their home in September 2022.


Constance Marten, 35, and Mark Gordon, 48, disappeared with their newborn baby after their car broke down and caught fire on the side of the M61 on January 5.

Ms Marten comes from a wealthy and aristocratic family while Mr Gordon is a sex offender who served 20 years in prison in the United States for rape and assault.

Police have appealed as they are concerned for the newborn and say neither the baby nor Ms Marten have received medical attention since birth.

The couple have reportedly lived an isolated life since meeting in 2016, when then-theatre student Ms Marten began cutting ties with family and friends.

She grew up at Crichel House, an estate in Dorset, in a prominent family that had links to the Royals.

According to the Sunday Times, her grandmother was a playmate of Princess Margaret while her father, Napier Marten, was a page to Queen Elizabeth.

The newspaper reported that the family put the Dorest estate on the market in 2010 for £100million before it was sold to an American buyer.

Last September, Ms. Marten and Mr. Gordon began moving around the country, renting AirBnBs for brief periods.

On January 5, they were on the M61 when their car broke down and caught fire near junction four in Farnworth, Bolton.

The couple then walked to the Anchor Lane Bridge, where they caught a taxi to Liverpool before taking another to Harwich, Essex.

They were seen around Colchester on Friday January 6 and Saturday January 7, when they took another taxi to East Ham station in Newham, London, and were last seen.

Every time Ms Marten and Mr Gordon are seen on CCTV they cover their faces or look away and have kept the baby covered.

Investigators say the couple seem to know how to evade authorities, making their search more difficult.

Police believe they could be anywhere in the UK and are calling on the public to provide any information that can help find them.

Investigators said it was unusual for hotels to accept cash payments and appealed to staff at hotels or hostels where the couple may be staying to come forward.

Detective Superintendent Lewis Basford said: ‘This is a complex investigation with officers across the Met continuing to work around the clock to locate Constance, Mark and their baby.

“There is no indication that either of them suffered any intentional harm – we just need to make sure he is okay, especially the baby, and does not require medical attention for any underlying issues.

“The last confirmed sighting of them was over a week ago in East Ham – they could now be anywhere in the UK which is why it is vital that members of the public continue to contact us to any suspected sightings.

“The help you have provided so far has been invaluable.

“Please don’t forget Constance, Mark and the baby – if you see them or think you have seen them, please contact us urgently.”

Some 200 officers are working on the search and have gone through more than 200 hours of CCTV footage since the couple were last seen on January 7.

Mr Gordon’s conviction relates to an attack in Florida on a woman in her early 20s when he was 14.

Anyone with family whereabouts information should call the incident room on 020 7175 0785.

Alternatively, information can be reported 100% anonymously to the independent charity Crimestoppers on 0800 555 111.

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