In the days after Canada’s worst mass shooting, there were dozens of questions we couldn’t answer. The list started with things as basic as "How many victims?" and "Who were they?" It ended with the biggest one of all: Why?

Police were clear that there would be no quick, neatly reported answers to anything. Now two weeks later, we know more, but not enough. We know Who and What and Where and, mostly, How. That’s what we can lay out for you today. The why, though? We might never know.

GUEST: Greg Mercer, Atlantic Canada reporter, The Globe and Mail

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