Original sentence: It is still unclear how many people died during the uprising and the subsequent trials.It was also alleged by unconfirmed reports that 17 or 18 Soviet soldiers were executed for refusing to shoot demonstrating workers.Other estimates put the number of casualties at at least 125.The number of known casualties is 55
Edited sentence: It is still unclear how many people died during the uprising, and by the death sentences which followed.It was also alleged that 17 or 18 Soviet soldiers were executed for refusing to shoot demonstrating workers, but these reports remain unconfirmed by post-1990 research.Other estimates put the number of victims at at least 125.The number of known victims is 55