In going through the meticulous details of the night Irving Ramirez murdered San Leandro police officer Nels Niemi, Alameda County DA Tom Orloff steered clear of emotion Monday during opening statements.

In his slow, monotone voice, he recounted the murder: Niemi had responded to a domestic disturbance call that night in July 2005. He came upon Ramirez and his friends, who had been drinking cognac, and asked for IDs. The cop turned around, Ramirez shot Niemi in the back of the head and then fired six more times.