Original sentence: Dumitru Burlan was the chief of bodyguards of Nicolae Ceauşescu, and served once as his stand-in (double).He failed to protect his master from the events known as the Romanian Revolution of 1989.Ten years after those events he tried to repair his fault by publishing the truth about those events and about Ceauşescu
Edited sentence: Dumitru Burlan was the chief of bodyguards of Nicolae Ceauşescu, and served once as his replacement.He failed to protect his master from the coup d'état known as the Romanian Revolution of 1989.Ten years after the "revolution" he tried to repair his fault by publishing the truth about those events and about Ceauşescu