A female friend of Beau Lamarre-Condon has begun giving evidence in his double murder trial. She was in a white van with the accused when, prosecutors allege, he tried to dump two bodies. That makes her a direct witness to a stage of events the prosecution and defense will fight over hardest. Lamarre-Condon, a former police officer, is standing trial over the deaths of two victims whose bodies the prosecution says he moved. What she tells the court about that ride, and about who appeared to be in control, will be picked apart under cross-examination. The accused once served as a police officer, which is part of why the case has kept drawing heavy attention. Prosecutors appear to be building their timeline through witnesses who can place him at specific points. The friend's evidence is expected to stretch beyond a single day in court.