"He wants to die, kill him and be done with it."
Done and done. I didn't agree with his ideals, nor his actions to try and achieve them. I'm very much on Aveline's camp in believing his sincere wish for mages to be free, didn't justify blowing up the chantry and killing the innocent people within it. To me, his actions just fortified what he thought he was trying to disprove. He harps about mages not all being bad, but he blows up a place of worship and kills a figure much of the city relied on and respected. Oh yes, I'm so going to believe mages deserve freedom now. Bullsh*t meter going off the charts. He can go on believing he died a martyr, but all he was, was a terrorist to me. Plus, I didn't need him and he pissed me off too many times to even consider letting him live. Shanked him then and shanked him after over and over again. Plus, I don't trust a man who can create bombs out of sh*t.
In terms of my Hawke, she felt utterly betrayed by his actions. He was her friend, though by the end, their friendship turned sour. Still, she thought she at least owed him her life for helping her brother survive. She gave him the benefit of the doubt, always leading a helpful hand and even supporting in his cause up to a certain point. His lie about the potion to separate Vengence(I don't refer to him as Justice anymore) and he, set off some alarms and she refused to take any part of whatever he was planning. Then, when he blew up the Chantry, she saw his actions as condemning her and other mages, not freeing them. She held no pity for the monster he became, just anger and guilt for not stopping him earlier. He deserved to die in her eyes, for the innocents he killed and the innocents that would eventually be killed due to his actions.
My playthrough with another one of my Hawkes, one that romance him, is at a standstill, cuz I'm not sure that to do with him at the end... I've been shanking him in every other playthrough, but I think I need at least one where I let him live. I will always love the Anders that we were first introduced to in Awakening, but the one he's changed into is just not my cup of tea.