http://www.cbc.ca/story/canada/national/2006/04/02/toronto-explosion-060402.html
2nd Device Found?
Later in the afternoon, a police robot was used to remove a parcel from the store, which is on Yonge Street just north of the intersection with Bloor Street. Explosives experts then detonated the package.
The initial blast took place just after 1 p.m. EDT.
Wait a minute... maybe this is just Dunkin' Donuts trying to show Tim Horton's who's boss.
No, "detonated the package" simply means that they blew it up with their own explosives. It's Standard Operating Procedure for the bomb squad. This other package could've been a bomb, but more likely it was somebody's sack lunch.
The delayed-second-explosion is the trademark of the Islamic terrorist and nobody else. I think this makes it conclusive.