Detective Michael Oliver, the undercover cop who fired 31 times at Sean Bell in the fatal November 2006 shooting, told a grand jury last year, "I didn't want to die. I reloaded the gun, and I continued to fire." The 14-year NYPD veteran's testimony was entered into evidence in the trial where he and fellow detective Gescard Isnora face manslaughter charges; detective Marc Cooper faces reckless endangerment. Bell, who was to be married hours later,......