The Times is reporting the fourth name as Lindsey Germaine, but the Guardian has Lyndsey Germail or Jamal.
It's not clear what has happened to Ejaz Fiaz from Leeds who was confidently named by the Times yesterday. The web version of that report has been removed.
It seems that the CCTV photo of Hasib Hussain was cropped so that it only shows him and not the other three men: I wonder why, and why other CCTV pictures have not been issued.