Passage 13 Passage 13 Police seek motive in fatal Washington state school shooting (Agencies)Updated:2014-10-2609:09 Student Tvanna Davis (R)and others place flowers outside Marysville-Pilchuck High School the day after a shooting at the school in Marysville.Washington October 25. 2014.[Photo/Agencies] MARYSVILLE,Wash.-Authorities in Washington state worked on Saturday to find out what led a popular high school student to open fire on a group of classmates seated at a cafeteria 1/6Passage 13 1 / 6 Passage 13 Police seek motive in fatal Washington state school shooting (Agencies)Updated: 2014-10-26 09:09 Student Tyanna Davis (R) and others place flowers outside Marysville-Pilchuck High School the day after a shooting at the school in Marysville, Washington October 25, 2014. [Photo/Agencies] MARYSVILLE, Wash. - Authorities in Washington state worked on Saturday to find out what led a popular high school student to open fire on a group of classmates seated at a cafeteria