Originally Posted by xeno000
Loki was a sympathetic character in Thor, but all of that ended in The Avengers, as far as I am concerned. He killed or caused the deaths of thousands of innocent people with his bloody scheme that boiled down to destroying the Earth simply because Thor loves it. Loki made numerous attempts on Thor's life, succeeded in killing him once and will do it again if his brother stupidly gives him another chance, which he undoubtedly will. He's just a vicious piece of work for whom redemption, if it's even possible, will probably come at the point of a sword.
Death would be a good career move for Loki at this point. He can come back later, crying hypocritical tears for his own downfall while plotting once again to destroy others.
See, I found there to be enough characterization on the writers and Tom's part to make me understand where he was coming from, but Loki was still shown to be the one behind the deaths of the Asgardians in Odin's Weapon's Vault. That showed that his destiny had been on the course he is now charting for some time. To me, anyway.