KEY LARGO, Fla. (AP) -- Investigators have determined three Florida Keys road workers died accidentally in a storm-water drain filled with poisonous gases.
The Citizen reports that the Monroe County Sheriff's Office concluded its investigation into the Jan. 16 deathswithout finding evidence to support criminal charges.
Sheriff Rick Ramsay said there was "a string of errors that led to this disaster" in Key Largo, but the deaths of three workers for a county contractor were accidental.
Fire Chief Don Bock said a firefighter who collapsed trying to rescue the men has been cleared to return to work.
A U.S. Occupational Safety and Health Administration investigation remains open. The Citizen reports that the contractor, D.N. Higgins, has been cited twice in the past by OSHA for a lack of safety equipment on job sites.