Jack Shepherd, the man convicted of manslaughter for a fatal 2015 speedboat crash on the River Thames, has been sentenced to a further 20 months in prison for assaulting his girlfriend. The 39-year-old, already serving a ten-year sentence, was convicted of two counts of assault occasioning actual bodily harm and damaging property following incidents earlier this year.

Shepherd was originally jailed in 2018 after the death of Charlotte Brown, 24, who was thrown from his speedboat when it struck a submerged tree trunk near Wandsworth Bridge at excessive speed. Following the crash, Shepherd fled to Georgia and was convicted in absentia before being extradited back to the UK. He was released on licence in January 2024 but was recalled to prison in September 2025 after new offences came to light.

The recent assaults against his new partner, a woman in her 50s whom he met shortly after his release, occurred between February and June 2025. Prosecutors detailed that Shepherd, often intoxicated, pinned the woman down and repeatedly punched her, causing bruising to her arm and leg. In a separate incident during a barbecue, he stabbed her left breast with sharp barbecue tongs after an argument over a burnt pizza, leaving a permanent scar. He also broke the ignition keys of her car while she attempted to flee another confrontation, trapping her inside.

Throughout their relationship, the victim reportedly experienced disparaging remarks about her age and appearance, with tensions escalating alongside Shepherd’s alcohol consumption. The victim described suffering lasting physical and emotional effects from the assaults, highlighting a significant loss of personal safety.

In court at Isleworth Crown Court, Judge Martin Edmunds KC characterized Shepherd as a continuing danger to society, particularly to women, citing his repeated pattern of violence and inability to control his drinking. The judge dismissed Shepherd’s expressions of remorse as insincere, noting his history of committing offences, offering apologies, and shifting blame. Shepherd was sentenced to 20 months imprisonment concurrently for the assaults, with an additional four years added to his extended licence period, meaning he will remain under supervision until May 2032.

Representing the defence, counsel acknowledged Shepherd’s regret over his conduct and the impact of his past notoriety on his partner. However, the judge emphasized that the offences represented a "snapshot of inexcusable violence" and underlined the serious harm inflicted.

Shepherd remains incarcerated at HMP Swaleside in Kent, serving the remainder of his original sentence for the manslaughter of Charlotte Brown and a separate assault on a hotel barman. His most recent conviction will not extend his prison time beyond the current release date but increases his period of licence supervision upon release.