Where a subcontractor’s injured employee files suit against the general contractor for negligence, the subcontractor’s insurer must demonstrate that the injury occurred through no fault of the subcontractor if it wishes to establish that it has no duty to defend the general contractor in the underlying lawsuit.The 1st District Appellate Court reversed and remanded a decision by Cook County Associate Judge Franklin U. Valderrama.Blinderman Construction Co. was hired as the general contractor for a construction …