From the CBC:

The RCMP’s national security team has arrested and charged an Ontario youth with a terrorism-related offence, the police force said Friday following an investigation in Kingston, Ont.

Police have laid two charges against the young person, who is accused of knowingly facilitating a terrorist activity and counselling another person to “deliver, place, discharge or detonate an explosive or other lethal device … against a place of public use with the intent to cause death or serious bodily injury.”

[…..]

A second individual, an adult male CBC News has identified as Hussam Eddin Alzahabi, was also arrested Thursday but has not been charged. Alzahabi’s father told CBC News that police have now released his son.

Interestingly, St Thomas Anglican Church in Kingston sponsored the Alzahabi family in 2016:

We have undertaken to sponsor the Alzahabi family: Amin and Samah as well as their children Firouz (19), Hussam Eddin (18) and Layth(10). They are Sunni Muslim, a persecuted minority in Syria.

Naturally no one is talking about ideology or motive, although it’s safe to assume the would-be perpetrators are not radical Anglicans.