L.A. skyscraper plunge investigated as suicide LOS ANGELES — Authorities are investigating whether an electrician intentionally leaped to his death from the 53rd floor of Los Angeles’ tallest skyscraper onto an intersection humming with a normal weekday’s bustle, the coroner said Friday. Joseph Sabbatino, 36, of Palmdale plunged some 800 feet from the unfinished Wilshire Grand Center on Thursday.