Mark Gordon is a registered sex offender from England, United Kingdom. Here are 13 more things about him:

1. He was born in Birmingham, West Midlands, England. When he was young, he, his mother Sylvia Gordon and his half-siblings including Karen Satchell moved to Florida, United States.
2. He is 13 years older than Constance Marten, a native of Dorset, South West, England.
3. In 1988, he allegedly broke into the home of a female neighbor, then in her 20s, in Florida, held her hostage at knifepoint for 4 hours and 30 minutes and sexually assaulted her.
4. In 1990, he was convicted on four counts of sexual battery in Fort Lauderdale, Broward County, Florida. He served 20 years in prison in Florida.
5. In 2010, he was deported from the U.S. to the U.K.
6. In 2016, he started living with Marten in Ilford, London, England.
7. In August 2020, he and Marten were living on the Coldharbour Estate in Greenwich, London. They later moved to Eltham, London.
8. In August 2022, he and Marten were evicted from their apartment in Eltham for not paying rent and leaving thousands of pounds worth of damage to the property.
9. In September 2022, he and Marten started living nomadically and she started to show signs of pregnancy.
10. On January 5, 2023, he, Marten and their newborn baby disappeared and their car was left on fire on the M61 in Bolton, North West, England.
11. On January 7, 2023, he and Marten were seen leaving a taxi with an orange carrier bag and a pram in London. Their faces were covered. They went from Bolton to Liverpool, England to Harwich, Essex to London.
12. On January 8, 2023, he and Marten were spotted near the ferry port in Newhaven, East Sussex, England.
13. He was 48 years old when he and Marten were arrested on February 27, 2023 in Stanmer Villas, Brighton. They were charged with gross negligence manslaughter. They have not revealed anything to investigators about their missing baby’s whereabouts, condition and sex.