Simplify the following text for a Grade 8 native English-speaking person.
Original: Diocletian may or may not have been present at the battle , but would present himself soon afterwards at Antioch , where the official version of events was made clear : Galerius was to take all the blame for the affair .
Simplified: Diocletian came to Antioch , where the official version of events was made clear : Galerius was to take all the blame .