A Tale of Two Sisters. March 22, 2014, the largest landslide in history took place in Oso Washington and took 43 lives and 49 structures. Kristina and Laura Harris were just 24 and 22 years old at the time and were left without a home or their parents. Making matters worse, their cousin who came with them to assist, took his own life just 2 weeks later. Finally, after 29 days of searching and digging through the mud, their parents bodies were the last ones found.