Bruce E KrellDr. Bruce Krell is an independent expert who performs shooting incident reconstructions. He has evaluated over 75 incidents and has testified in 10. Dr Krell has a PhD in Applied Mathematics. He has over 38 years of experience as a systems engineer ad as a software architect over a wide range of product areas, including missile, microscope, manufacturing, video, and sound engineering. He also has over 38 years experience as a ballistics scientist/engineer and over 18 years experience as a firearms instructor. Read More Read Less