RONKONKOMA - Authorities say a teen was struck and killed by a deputy sheriff on the Long Island Expressway last night.William Schettino, 18, was stopped in the HOV lane by exit 59 in Ronkonkoma just before 6 p.m. when the accident occurred. His family says he stopped because another car had sideswiped him and he was waiting for help. A deputy sheriff who was patrolling the highway manuevered to avoid Schettino's car, but wound up hitting the teen, who had exited his vehicle. The Suffolk County Sheriff's Office says the deputy was blinded by the sun as he attempted to avoid the vehicle.

Schettino's family tells News 12 Long Island he could not get out of the driver's side so he had climbed out of the passenger's side and put his hazard lights on before calling police. He also called his mother just before he was hit.

Officials identified the sheriff as Richard Tedesco, 37. He has been with the Suffolk Sheriff's Department since 2007 and has been on highway patrol since 2008.

Westbound lanes on the highway were closed for hours as police investigated.

Officials are still investigating the accident.