SAN FRANCISCO, Sept. 25, 2015 /PRNewswire-USNewswire/ -- Cal/OSHA's criminal investigation into the December 2012 falling death of a 51-year-old carpenter in San Francisco resulted in manslaughter charges by the San Francisco District Attorney against the worker's employer and foreman. Salvador William Versaggi, owner of Versaggi Construction, along with foreman John Fitt pleaded not guilty on Tuesday to the manslaughter charges and two counts of violation of the labor code.

"When our investigations uncover potentially criminal behavior by employers, we exercise our full jurisdiction not only to protect workers but to also make referrals to the District Attorney for prosecution …