Original sentence: However, according to a contested official investigation undertaken after the fall of the Junta, no students of the Athens Polytechnic were killed during the incident.Total recorded casualties amount to 24 civilians killed outside Athens Polytechnic campus
Edited sentence: However, according to a much contested official investigation undertaken after the fall of the Junta, no students of the Athens Polytechnic were killed during the incident.Total recorded casualties ammount to 24 civilians killed outside Athens Polytechnic campus