Walk N News Today

Discovered near a venue for the upcoming pan-am games. its 30 feet long tall enough for a man to walk n and has reinforced walls. beyond that, investigators are drawing a complete blank. following this in toronto, ctv reporter, peter ackerman. has anything been found in that tunnel? any clues to go on? >> they found a lot of clues, actually. they discovered this tunnel mid-january. they went in there. police brought in the forensic unit. there was garbage from food containers. there were bottles...