Deadly multi-car crash causes backups on I-5 in SeaTac

A deadly multi-car crash blocked northbound I-5 near S 200th Street in SeaTac on Thursday night, causing traffic backups of more than a mile. Washington State Patrol said multiple vehicles were involved and at least one person was killed. All lanes were blocked at one point, and drivers were directed to exit at SR 516 toward Kent and Des Moines.