Inexperience and weather were key factors in a climbing accident that killed three climbers and severely injured another in the North Cascades this spring.
48-year-old Vishnu Irigireddy of Renton, 63-year-old Tim Nguyen of Renton and 36-year-old Oleksander Martynenko of Bellevue died while descending a mountain in the Okanogan-Wenatchee Forest in May.
Their friend and fellow climber survived, even though all four were roped together…