In a letter to the West Seattle High School community, Seattle Public Schools Superintendent Dr. Maria Goodloe-Johnson announced an interim principal for WSHS, whose current principal and assistant principals are all leaving: Ruth Medsker, a former principal at Beacon Hill’s Mercer Middle School, will take over on July 1st, after five years in district administration as an education director, supervising middle schools and K-8s. Here’s the letter from the superintendent.