This post kept updated here: https://waylandenews.com/2017/05/20/one-killed-in-head-on-crash-in-weston/.

Wayland Patch 5/19/17: 1 Dead After 3-Car Crash, Route 20 In Wayland And Weston Closed. One person is dead following a three-car crash in Weston, state police said. The crash occurred on Route 20 near the Wayland town line. Both sides of Route 20 are closed in the area. Detours will be in place.