Original sentence: During the War on Terror in the early years of the 21st century, allegations of deliberate desecration of the Qur'an in front of Muslim prisoners at the United States military base in Guantánamo Bay fueled a widespread controversy and were blamed for deadly riots; see Desecration of the Qur'an at Guantánamo Bay
Edited sentence: During the War on Terror in the early years of the 21st century, alleged and later confirmed deliberate desecration of the Qur'an in front of Muslim prisoners at the United States military base in Guantánamo Bay caused a widespread controversy and possibly deadly riots; see Desecration of the Qur'an at Guantánamo Bay