Police appeal for information about the kidnapping and death of 21-year-old Jack Sullivan from Waltham Abbey, Essex. Multiple outlets report that Sullivan is taken from Waltham Abbey on 22 June and is later found seriously injured in Cheshunt, Hertfordshire, in a car park. He dies four days after being found, according to the reports. The BBC states that detectives are specifically seeking information connected to a Louis Vuitton pair of trainers and the vehicle involved, as part of the investigation. The Daily Mail describes the trainers as missing and reports they may form a key element in understanding what happened before Sullivan was found. Police urge anyone with information, including details about sightings of Sullivan, the car park location, or relevant items and movements around the time of the kidnapping, to come forward. Authorities have not publicly attributed a suspect in the provided reports, and the investigation remains ongoing.