were arrested following an investigation by the metropolitan police�*s flying squad. an inquest has heard that fishmongers�* hall terrorist usman khan was shot at 20 times by armed police before he died on london bridge. he stabbed jack merritt and saskia jones at a prisoner rehabilitation conference at the hall on 29 november, 2019. he injured two others before being shot dead by officers. the inquest into the 28—year—old�*s death, being held at guildhall, is due to last two weeks. our home affairs correspondent daniel sandford has been following today�*s hearing. the jury have been watching compelling footage of the moment that usman khan emerges from the fishmongers�* hall having just killed jack merritt and saskia jones, pursued by steve gallant, john crilly and darren frost,