The Montreal Police announced on Twitter that a suspect has been arrested in the David Mabus/Dennis Markuze death threat case. Since Mabus/Markuze is the only possible suspect in the case, it must be him. Tim Farley has apparently confirmed that it was Mabus. I hope they can hold on to him.
Update: The Vancouver Sun confirms all of this, though they haven’t used his real name. He’s going to undergo a psychiatric evaluation; can’t imagine how that’s gonna turn out.