The building is the former Toronto satellite head office / home away from home for Peter Nygard's Nygard corporation (the main head office was in Winnipeg). The building had been in Nygard's hands for around 30 years of so - could have been a bit less, not sure of the exact date Nygard acquired it.
Nygard had material business in the United States - the mural was done as a show of unity with the Americans in the aftermath of the Osama Bin Laden organized 9/11 terrorist attacks in the United States on September 11, 2001.
As mentioned above, the wall has been repainted in the past few days - as can be seen in the more panoramic view of the Portland Commons project below.
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