REGINA—A 26-year-old RCMP officer was struck and killed by a truck he pulled over in rural Saskatchewan on Saturday morning, police said as they pledged to get to the bottom of what happened. Const. Shelby Patton had been following the truck, which was allegedly stolen from Manitoba, before attempting a traffic stop in Wolseley, Sask., at about 8 a.m., Assistant Commissioner Rhonda Blackmore told a news conference. “This morning, I, along with the Indian Head detachment commander and the Saskatchewan RCMP chaplain, had to tell Const. Patton’s wife the difficult news that he is not coming home,” Blackmore said. “I am heartbroken for her and her family.” She said Patton was hit by the truck while outside of his cruiser conducting the traffic stop. He died at the scene. Blackmore said the truck drove off and was found in a rural area northeast of Francis, Sask., two hours later. A …