Jack Shepherd, known as the "speedboat killer," has been sentenced to 20 months in prison for violently assaulting his new girlfriend. Shepherd, 39, was previously jailed in 2018 for six years over the death of Charlotte Brown, a 24-year-old woman who died when his speedboat crashed during their first date. He had fled the UK and skipped his trial at the Old Bailey before being extradited from Georgia to serve his sentence. He was released on licence in January 2024 but was recalled to prison last September after allegations that he had assaulted his new partner. The victim, a woman in her 50s, began dating Shepherd in August 2024. In February 2025, Shepherd admitted to pinning her down and punching her. Later that same year, in June 2025, he struck her in the chest with barbecue tongs and damaged her keys. During an argument, he punched her several times, causing bruising on her arm and the top of her leg. The incidents led to Shepherd being taken back into custody. At Isleworth Crown Court, Shepherd pleaded guilty to two counts of assault occasioning actual bodily harm and a charge of damaging property. He was sentenced to 20 months in prison and received a four-year extended licence period. The attacks occurred in February and June 2025 and were the reason for his recall to custody. The victim testified that Shepherd had become abusive and threatening toward the end of 2024. She said she was stabbed with the sharply pointed barbecue tongs after commenting that he had burnt a pizza, which led to a heated argument. Shepherd was found guilty of the assaults and is now serving his sentence.