Anyone remember the Toronto 18?  A few reminders (from Wikipedia; link below) 
1) "The 2006 Ontario terrorism case refers to the plotting of a series of attacks against targets in Southern Ontario". 
2) "The group was preparing a large-scale terrorist attack in southern Ontario. They planned to detonate truck bombs in at least three locations, and open fire in a crowded area. They also made plans to storm various buildings such as the Canadian Broadcasting Centre and the Canadian Parliament building, and take hostages."
3) "7 adults pleaded guilty including the two ringleaders...The remaining 5 received sentences ranging from 7 to 20 years.  A further 3 adults and 1 youth were convicted at trial"
4) "Six of the 18 men arrested have ties to the Al Rahman Islamic Center near Toronto, a Sunni mosque."
https://en.wikipedia.org/wiki/2006_Ontario_terrorism_plot