Abstract: On December 3, 2013, Employee #1, a roofer employed by J.M.A.C. International, Inc., doing business as a roofing and construction contractor, was working on the roof of a residential building. He had just inspected the roof and was about to climb down. He stepped onto a 20-foot metal extension ladder without looking at it or grabbing it with his hands. Employee #1 fell from the ladder to the wooden deck below, a fall height of approximately 8 feet 1 inch. Emergency services were called, and Employee #1 was transported to the hospital. He was admitted and treated for five fractured left ribs, three compressed discs, and a spinal fracture. The employer reported this event to Cal/OSHA on December 4, 2013. The subsequent investigation determined that the ladder was not secured in place, a contributing factor to Employee #1's fall. Employee #1 was working alone, and there were no eyewitnesses to his fall. His immediate supervisor was not on site at the time.