A driver for a steel company died Monday when rebar fell on him as he was delivering materials to the new Levi's Stadium in Santa Clara.This is the second construction worker-related death in four months at the stadium, soon to be the future home of the San Francisco 49ers football team.Peter Melton, spokesman for Cal-OSHA, said the driver worked for Gerdau Ameristeel, and the accident was reported at 6:45 a.m. Melton did not immediately have more specifics on the accident, or how the steel beams fell on top of the man.RAW VIDEO: Chopper View of Stadium After Steel Worker Dies"Our sincerest thoughts and prayers are with the family, friends and co-workers affected by this tragedy," the 49ers issued in a statement.NBC Bay Area's chopper flew overhead about 9 a.m., showing workers huddled in groups speaking with each other. Yellow tape surrounded a portion outside the stadium, where large wooden planks formed a ramp.On June 11, a 63-year-old elevator mechanic doing work at Levi's Stadium died when he was standing on a ladder beneath the counter-weight of an elevator when the weight came down and struck him on the east side of the construction site. That death shut down...