With the murder of Hariri. Folks that think so ignore every shred of evidence - as did those who, like Israel wanted the investigation to name Syria. Hisbollah's motive remains obscure, it's culpability is proven by the various means it has tried to evade accusation. If Hisbollah were not guilty would it have tried all of the evasive and craven tactics it has pursued for the last year?
One student killed, three wounded at Arizona campus during fight (a)
from the article: Hariri: No alternative to dialogue to solve Lebanon crisis