Bill Gates Sr., a respected lawyer, devoted civic leader, trusted mentor, and influential philanthropist who helped to shape Seattle’s tech industry even before his son co-founded Microsoft, died Monday of Alzheimer’s disease. He was 94. “My father’s death is a tremendous loss for our family and the many people whose lives he touched. Dad lived a long and enormously meaningful life,” Bill Gates Jr. said in a statement issued by the Gates family. [RELATED: Read GeekWire’s 2015 profile of Bill Gates Sr.] “I never stopped learning from his wisdom, kindness, and humility,” he added.