Off from the world. we have spent six months speaking to people who lived through it. entire blocks of flats were turned into infernos. around 90% of the buildings destroyed in mariupol were homes. ukrainian officials estimate 5,000 to 7,000 people were crushed beneath the rubble. 0lga was an accountant before the war, married to valeriy. she loved to dance. one night in march, she was sleeping in her cellar, valeriy and her parents were upstairs, when their house was hit. as it got light, 0lga was still trapped and alone. finally, after eight hours ....