. >> 29-year-old isaac espinoza was gunned down in the gang-ridden neighborhood of bayview. >> isaac amazing cop. he is the type of person that you would hope would be out there protecting your community. >> an arrest was made the next day, but the sting of espinoza's death got worse when harris made an unexpected announcement, only three days after the shooting. >> in san francisco, it is the will i believe of the majority of people that the most severe crimes be met with the most severe consequence, and that life without possibility of parole is a severe consequence. >> and i'm standing there and i'm going oh my god. >> former police union president gary delagnes was standing next to harris when she made the announcement. he says the timing of that decision riled a police force already shaken with grief. >> you're thinking to yourself, okay, is she sorry that this kid died or is this just a political opportunity? what would her motives be to do this so soon after the death? >> now from the first moments after the killing, i was actively involved in the case. and the bottom line is