Simplify the following text for a Grade 12 native English-speaking person.
Original: However , on August 23 , 2007 , a Russian archaeologist announced the discovery of two burned , partial skeletons at a bonfire site near Yekaterinburg that appeared to match the site described in Yurovsky 's memoirs .
Simplified: However , on 23 August 2007 , a Russian archaeologist declared that he had found two burned skeletons near Yekaterinburg , at a place which seemed to match what was described in Yurovsky 's writings .