John Mongan

Several individuals named John Mongan have been associated with criminal cases and legal proceedings in the UK, with varying charges, court appearances, and outcomes.

John Mongan (Hackney)

In September 2022, John Mongan, then 54 years old and from Hackney, was sentenced at Snaresbrook Crown Court to nine years in prison. He was convicted of six counts of attempting to engage in sexual communication with a child, two counts of attempting to incite a child to engage in sexual activity, and attempting to meet a child following sexual grooming. Mongan created a fake Facebook profile between May and August 2020 to contact six girls he believed were aged 12-14, sending graphic messages and photos. He was also placed on the sex offenders register for life. He was charged in January 2022 and had been remanded in custody.

John Mongan (Salford)

John Mongan, born on January 2, 1979, and associated with A1 Garden & Landscape Services, was sentenced on January 23, 2026, at Manchester and Salford Magistrates Court for fraud and consumer protection offenses. He had been convicted in his absence in 2020 after failing to appear in court in March 2020. The charges stemmed from landscaping work in 2018 where he demanded an upfront payment of £1,380 but performed only minimal preparatory work. He was ordered to pay £1,380 in compensation to the complainant and £1,123 in costs to Salford City Council. He also received a 12-month community order, including 150 hours of unpaid work and 10 Rehabilitation Activity Requirement days.

John Francis Mongan (South East London)

In December 2019, John Francis Mongan, then 18 years old and of no fixed address, was charged with five burglary-related offenses, one count of attempted burglary, one count of robbery, and one count of attempted robbery following a string of incidents in South East London. He was due to appear at Bromley Magistrates Court on December 16, 2019.

John Mongan (Doncaster)

As of July 8, 2026, a John Mongan is scheduled for a plea hearing at Doncaster Justice Centre North. The charges include drunk and disorderly in a public place, three counts of assault on a constable in the execution of their duty (one of which is specified as assault by beating of an emergency worker), and use of threatening/abusive/insulting words/behaviour to cause harassment/alarm/distress.

John Mongan (Wheatley, Oxford)

In April 2013, John Mongan, then 41 years old and from Wheatley, was cleared of all charges following a three-day trial at Oxford Crown Court. He had been accused of twice stabbing Jason McDonagh during a mass brawl at a traveller funeral on November 13, 2012, motivated by a long-standing family feud. Mongan was found not guilty of wounding with intent, unlawful wounding, affray, and having an offensive weapon in a public place.

John Mongan (Hawick/Londonderry)

In November 2022, John Mongan, then 48 years old and formerly of Hawick, admitted to driving a Transit van on the A699 St Boswells to Selkirk road on July 30 while disqualified. He claimed he was unaware of the disqualification as details of his ban were sent to his Londonderry home, which he did not receive. Selkirk Sheriff Court imposed a fine of £450, a £20 victim surcharge, and endorsed his license with six penalty points.

John Anthony Mongan (Walsall)

John Anthony Mongan, 49, from Walsall, was the victim of a fatal incident in Welshpool town centre on June 28, 2026. An inquest into his death was opened on July 10, 2026, and subsequently suspended pending police investigations. A 22-year-old man, Martin Slezak, has been charged with his murder.