old's murder believe she was attacked on her way to meet a friend at a pub a week ago. a 38—year—old man has been arrested. the mayor of london says he's still pushing the government to make face coverings on public transport a national requirement to help stop the spread of coronavirus. it's a condition of travel on tfl services. but sadiq khan says fewer people are now wearing masks and wants the police to be able to issue fines. at the moment, we're not getting the help from the government that we need and as a consequence, people who can't keep their social distance, have to use public transport, are taking a lottery over the chance of potentially catching it because if you aren't wearing a facemask, there is more of a chance of you passing it on if you've got the virus. two europe's largest biomedical research institute under one roof re—opens to the public in london this weekend. the gallery at the francis crick institute closed during the pandemic to serve as a covid vaccination centre. it's now reopening with