Complex sentence: Al-Abbas was forced to die of thirst, and his male offspring were arrested, and likely executed, by Itakh, and the other leaders of the conspiracy were executed in ingenious and excessively cruel ways, which were widely publicized as a deterrent to others.
Split into simpler sentences: Al-Abbas was forced to die of thirst, while his male offspring were arrested, and likely executed, by Itakh. The other leaders of the conspiracy were likewise executed in ingenious and excessively cruel ways, which were widely publicized as a deterrent to others.