OTTAWA -- Questions were raised about steering, speed, and whether the bus driver was distracted at any time on the final day of testimony at the Westboro bus crash trial. On Monday, Crown attorney Dallas Mack showed the defence's key witness, collision reconstruction expert Richard Lamoureux, video of Aissatou Diallo on the day of the crash using her phone then putting it away before picking up passengers. He then went through grainy video that he alleged showed Diallo taking a headphone out of her ear after the crash and the phone in her hand as she rushes to the top floor of the bus.