William Sitwell, the editor of Waitrose Food magazine has resigned following a Twitter backlash over an email he sent to a vegan food writer, suggesting they write a post on \u201ckilling vegans\u201d.\r\n\r\nHe replied to writer Selene Nelson: \u201cHow about a series on killing vegans, one by one. Ways to trap them? How to interrogate them properly? Expose their hypocrisy? Force-feed them meat? Make them eat steak and drink red wine?\u201d\r\n\r\nhttps:\/\/twitter.com\/Lynne57048816\/status\/1057002680772710405\r\n\r\nSitwell has been the magazine\u2019s editor for 20 years and apologised for what he called an \u201cill-judged joke\u201d on Instagram, adding he was \u201cproud\u201d of his work on the title. Waitrose has said it felt the former editor\u2019s resignation was the \u201cright and proper move\u201d. The magazine\u2019s publisher John Brown Media has thanked Sitwell for his work.\r\n\r\nhttps:\/\/www.instagram.com\/p\/Bpl8Kfwncyg\/?utm_source=ig_web_copy_link\r\n\r\nNelson sent the email to Buzzfeed News, however she claimed on Twitter she did not \u201csell\u201d the story. She said: \u201cI pitched BuzzFeed an article exploring the hostility vegans often face, using WS's email as just one example of it. BuzzFeed wanted to run the story themselves as a news piece rather than a thought piece. I didn't get paid for it or have any editorial control.\u201d\r\n\r\nhttps:\/\/twitter.com\/Selene_Nelson\/status\/1057355538898608133\r\n\r\nSince the Buzzfeed article Nelson has written articles for The Independent about the email and the subject of vegans being spoken to with \u201chostility and anger\u201d.\r\n\r\nThe article prompted a backlash on Twitter, prompting Waitrose to release a statement which said his comments were \u201cextremely inappropriate, insensitive and absolutely do not represent our views\u201d.