Nearly eight months later, his family are still searching for answers and are frustrated with the lack of progress on the case.
Mr Richardson's son Aaron said the family is not receiving answers from either Indonesian or Australian authorities.
Welsh -og) meaning either "place of the yew trees" (cf.
efrog in Welsh, eabhrac in Irish Gaelic and eabhraig in Scottish Gaelic, by which names the city is known in those languages); or less probably, Eburos, 'property', which is a personal Celtic name mentioned in different documents as Eβουρος, Eburus and Eburius, and which, combined with the same suffix *-āko(n), could denote a property.
In 2011 the urban area had a population of 153,717, The word York (Old Norse: Jórvík) derives from the Latinised name for the city, variously rendered as Eboracum, Eburacum or Eburaci.
The first mention of York by this name is dated to circa 95–104 AD as an address on a wooden stylus tablet from the Roman fortress of Vindolanda in Northumberland.
The name Eboracum became the Anglian Eoforwic in the 7th century: a compound of Eofor-, from the old name, and -wic a village probably by conflation of the element Ebor- with a Germanic root *eburaz (boar); by the 7th century the Old English for 'boar' had become eofor.