William (or Joseph) Sokoloff (or Sokolow) was a Latvian who had been arrested in Riga in 1905 for murder and robbery before travelling to London.
威廉（或约瑟夫）·索科洛夫（或索科洛）是拉脱维亚人，1905年在里加因谋杀和盗窃被捕，后前往伦敦。