'Speedboat killer' Jack Shepherd pleads guilty to BBQ tongs assault on girlfriendJack Shepherd, the notorious 'speedboat killer' convicted of manslaughter in 2018, has pleaded guilty to violently assaulting his girlfriendView Image Shepherd pleaded guilty to three offences (Image: Devon Police)Infamous 'speedboat killer' Jack Shepherd has admitted to violently attacking his girlfriend, including striking her with a pair of barbecue tongs. The 38 year old entered guilty pleas via a prison video link on Tuesday to two counts of assault occasioning actual bodily harm and criminal damage. ‌At Tuesday's hearing, Shepherd pleaded guilty to three offences after prosecutors agreed to drop two further charges of controlling or coercive behaviour and intentional suffocation. He has confessed to pinning down the woman and punching her in February 2025, hitting her in the chest with barbecue tongs in June 2025, and damaging her keys during the same month. His most recent offences came to light last month, detailed in a Parole Board report following his recall to prison.