Tom Walsh, left, a lawyer defending train conductor Tom Harding, and Daniel Roy claim that criminal charges against two men accused in the Lac-Megantic tragedy should be dropped during a news conference Thursday, August 28, 2014 in Montreal. The date for a preliminary hearing for three men charged in the Lac-Megantic train derailment will be set next January, 18 months after 47 people were killed in the devastating tragedy. THE CANADIAN PRESS/Paul Chiasson