Good Morning Britain weatherman Alex Beresford, 39, announced that his step-grandmother died alone last night after she contracted coronavirus.The TV presenter told his friends and followers how he felt "upset, trapped and powerless".Alex confirmed his devastating news on Twitter yesterday as he wrote: "My lovely step grandmother died on her own tonight!"I can’t even go to my mum's to hug her or my stepdad."The GMB presenter continued to say: "They also can’t leave the house because they are vulnerable and I doubt they would let us in to pay our respects."I feel upset, trapped and powerless!"This morning, the ITV weatherman shared an update following on from his initial statement, which read: "To be clear we can’t confirm why my step.