Jeremy Olson stood in front of his home May 25 and looked across the street and down the block, to the back of a small house nestled in what he described as a serene neighborhood. On the other side of the red-brick home that was snaring his gaze, police that morning had shot and killed one of his longtime friends.He had grown up with Jeff Foote, had gone on Boy Scout camping trips with him. Their mothers are close, too, and sometimes walk the Washington Terrace neighborhood together. But now Olson was left struggling to understand why someone he'd known his whole life was dead. That morning, police said, Foote, 39, had called 911, threatening suicide. When officers arrived, they tried negotiating with him. But when he fired a handgun, a Weber County sheriff's deputy shot and killed him.