we all knowjohn palmer had a background, but john palmer is actually dead. caught. in a statement released today byjohn palmer's partner, christina cantley, she says, "it haunts us every day to think that whoever was responsible was clearly watching john, stalking him like an animal before so brutally and callously ending his life". she has appealed to anyone with information to contact crimestoppers anonymously on 0800 555111. kim riley, bbc look east, essex police headquarters. the uk's first zero—emission hydrogen—powered train has been the star of a major railway exhibition at long marston in warwickshire. researchers at the university of birmingham have developed the engine, which is a small narrow—gauge prototype. they say it could have far reaching affects on cleaner rail technology. peter plisner reports. it might be small, but the technology that runs it could be the next big thing on the railways. today's passengers certainly thought so. i think it's one of the ways forward, certainly. i think it's a great piece of innovation, especially if it's goo