Jet is a firearms and forensics expert, yet she refers to the shell casings from the scene of the shooting as "man killers, a special type used by private armies and professional killers". However the shell casings in question are just .45 ACP, which is one of the top three most commonly used automatic handgun cartridges in the world along with the 9x19mm and .40 S&W, nothing special or uncommon about them.