🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiPortuguêsTürkçeРусскийالعربية한국어日本語EntityQ1282988· pop 17· linked from 166 articlesDear Boss lettermessage received in 1888, which claims to have been written by the serial killer now known as Jack the RipperWikidata factsImageDear Boss envelope.jpgSources (1)wikidata.orgvia Wikidata · CC0Available in 16 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsالعربيةCroatianNederlandsNorwegianConnectionsLondonCityInternational Standard Book NumberEntityCategories1888 documentsHoaxes in EnglandJack the RipperLetters written in EnglishWorks published under a pseudonym