Police: Video may offer clue to Detroit-Windsor Tunnel bomb thre - WNEM TV 5

Police in Canada say they're looking at surveillance video from a coffee shop for any clues that might help identify the man who called in a bomb threat at the international tunnel connecting Detroit and Windsor, Ontario.

The threat Thursday turned out to be false, but the Detroit-Windsor Tunnel was shut down for nearly four hours while authorities responded. Windsor police Sgt. Matthew D'Asti says a man calling from a pay phone warned of a bomb in the tunnel across the Detroit River, on the Canadian side.

D'Asti said Friday that police are examining video from a nearby Tim Hortons coffee shop, but it's not known if the camera recorded footage of the public phone. D'Asti says police also are inspecting the phone for any evidence such as fingerprints.

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