Apple says that sales have dropped for the fourth quarter in a row despite a boost from iPhones.
Casey Bloys was responding to reports he tasked staff with creating fake accounts to attack critics.
The prime minister and the tech billionaire sat down together to talk tech, education - and killer robots.
Dawn Walker, who is also accused of abducting her son, said she was fleeing domestic violence.
Duane "Keffe D" Davis was arrested in September in connection with the 1996 drive-by shooting.
Lisa's account disappears on Weibo after her five-show stint at Crazy Horse nightclub in Paris.
The Prodigy and Pet Shop Boys are also set to perform at the event next year.
The decision is taken after some people did not realise their profiles had been removed, organisers say.
The prime minster says the technology can help rather than replace workers, as the UK's AI summit ends.
The TV presenter and writer welcomed daughter June Violet with her partner, comic David Mitchell.