A teenager from Elk in north Spokane County died after crashing his motorcycle on Interstate 90 Thursday evening. Ryan J. Tachell, 18, was traveling eastbound approaching the construction zone near Spokane Street. He lost control of his motorcycle and crashed into the median barrier. Tachell was transported to Kootenai Health, where he died Friday morning. Tachell was a senior at Riverside High School, where he also participated in a STEM program called Riverside Technical Academy. Counselors were at the school Friday to assist grieving students and will also be at the school from 8 a.m. to noon Saturday. A candlelight vigil for Tachell is planned in the school’s football stadium at 8 p.m. Sunday. Any witnesses to the crash are asked to contact Sgt. Greear with the Idaho State Police at (208) 209-8730.