The two detectives then engage in a gun battle with the thugs , and Smith is shot in the back , although his vest saves his life .
Connor sneaks back to Smith 's apartment , carrying a bulletproof vest .
The two detectives then engage in a gun battle with the thugs , and Smith is shot in the back , although Smith 's vest saves his life .
Connor sneaks back to Smith 's apartment , carrying a bulletproof vest .