and at how the pandemic has this cohort of 18 year olds. also on the programme. the killing of 87 year old thomas o halloran, who was stabbed on his mobility scooter in west london a man is arrested. another rail strike leaves only one in five trains running with widespread disruption for passengers. and divers say they struck gold off the isles of scilly when they found the us warship which sank during world war i. and coming up on the bbc news channel. south africa take a lead in the first test as engalnd desperately try to limit their advantage on day two at lord s. good afternoon. there s been delight but also disappointment on results day for hundreds of thousands of teenagers across england, wales and northern ireland who ve had their studies severely disrupted by the pandemic. almost 850,000 a levels were taken this year and the proportion of top grades fell compared with the last two years, although they are still higher than before the pandemic. these pupils w