Abstract: At approximately 5:35 p.m. on December 16, 2010, Employee #1, a foreman, worked as a roofer on the construction of a custom home in Morgan Hill, CA. It was the end of the work shift and it was about to rain. Employee #1 worked on the second level roof top, and was laying down felt. Employee #1 worked with two other employees and the president of the company. All three employees and the president of the company were on the roof top. According to the president of the company, he and the other two employees wore fall protection equipment, but Employee #1 did not. According to the president of the company, he advised Employee #1 to put on fall protection equipment twice. Employee #1 carried a roll of felt and walked on the roof. Employee #1 slipped and fell from the roof, from a height of 27 ft, to the ground. Emergency services arrived within minutes of the fall. Employee #1 was killed by the fall and pronounced dead at the worksite. At approximately 5:45 p.m. that same day, the sheriff's department and the fire department reported the accident to Cal/OSHA of Fresno, CA. At approximately 11:00 a.m. on December 17, 2010, Cal/OSHA began an investigation of the accident, and took photographs and measurements of the accident scene.