I think it was Magic Johnson had a pretty good take on it.
If it was an accident, wouldn't his first reaction be to turn around and see if whomever he just clocked is dead? Also, Ibaka stated that he went over to talk to him and Artest was ready to fight. His actions AFTER the elbow pretty much give him away.
Beside all that, who "bows up" their elbow and jerks it violently backward in celebration? Who does that???
If it was an accident, wouldn't his first reaction be to turn around and see if whomever he just clocked is dead? Also, Ibaka stated that he went over to talk to him and Artest was ready to fight. His actions AFTER the elbow pretty much give him away.
Beside all that, who "bows up" their elbow and jerks it violently backward in celebration? Who does that???

