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TWIN BRIDGES — While snowboarding at Sierra-at-Tahoe Thursday, a man crashed into a fence and was killed.

The 23-year-old snowboarder was on an intermediate trail around 1:15 p.m. when the incident occurred, according to Thea Hardy with Sierra-at-Tahoe. Friends and the El Dorado County Sheriff’s Office identified the man as David Karlin.

Witnesses told the ski resort Karlin was traveling at a high speed when he hit the fence. Hardy reports he was also not wearing a helmet.

The resort’s ski patrol and an acquaintance provided first aid before paramedics tried reviving Karlin. He was later pronounced dead. Cause of death has not been confirmed by officials.

Karlin graduated from Casa Roble High School where he played on the football team.

A GoFundMe has been set up to help pay for funeral costs.

FOX40 contacted the El Dorado County Sheriff’s Office but they could not be reached for further details.