This article is an introduction to the use of trigonometry for the purpose of reconstructing shooting scenes. It was written to provide the crime scene investigator, without a background in mathematics, with a basic look at how mathematical reconstruction is performed. This method has been reliable and is complementary to other reconstruction methods.
Introduction to the Trigonometric Shooting Reconstruction Method
Rose, D.; Ekleberry, T.; Wilgus, G. Introduction to the Trigonometric Shooting Reconstruction Method. J. For. Ident. 2004, 54 (6), 637-644.