i share the sentiment, but actually the best result would be for him and his family to retire with a wedge of cash to some discrete part of the world as part of an agreed transition - if he gets strung up, in the way he so richly deserves, all thats been achieved is that the next dictator with popularity problem sees that the only decent outcome for himself and his family is through the profligate use of every weapon to hand in order to fend off the revolution/insurgency.
what the world needs is a retirement plan for dictators, somewhere pleasant they can live out their lives in comfort and security so that when things get a bit sporty at home, they can just fuck off sharpish before anyone gets killed.
it lacks natural justice, and it leaves a bitter taste in the mouth - but with a million refugees, 60,000+ dead, and two years of full on civil war having wrecked the place, a bitter taste might well have been a better option for Syria.