santa barbara customers flying bullets into the market glass shattering to but the strike christopher martinez like to trade all the remaining days and i have left in my life with one more day we met richard martinez a year ago here they talk about gonna ride this what about chris is right to live what was that drove you to do that it was not a bareass a decision i cannot accept the way he died is preventable is going on every single day in this country to men have died wishes it to ourselves not one more an impassioned plea becomes a rally cry at the memorial not one more becomes a #2.4 million postcards nothing at all was an important as the protest broke out they quit a police officer accused of killing two of our people three years ago. >>mark: that were shot and killed by police after a high- speed chase that involve more than 60 patrol cars in 2012 to allow officers fired more than zero hundred and 30 shots into the car when the chase ended will see other pleas of the stops to do what all this a job on the hood of the car and fired 15 shots directly into the windshield of the opposite is

two bullets strike christopher martinez as he runs into the store, bleeding to death on the floor, just 20 years old, the only child of richard martinez. does it feel like a year? >> no, it's all a blur to me. if i could trade all of the remaining days that i have left in my life for one more day with my son, i'd do it. >> reporter: we first met richard martinez a year ago, here, when you walked in front of the cameras at the sheriff's press conference 0 -- >> they talk about gun rights, what about chris' right to live? >> reporter: what was it that drove to you do that? >> it wasn't a very rational decision. i have to tell you. i just did it. i can't accept the way he died. it was preventible. and it's going on every single day in this country. too many have died! we should say to ourselves, not one more. >> reporter: an impassioned plea becomes a rallying cry at the university's memorial. >> not one more! >> reporter: "not one more" backs a hash tag. and then 2.4 million postcards then this grieving father with every time for gun safety delivering them to lawmakers across the country.

two bullets strike christopher martinez he's runs into the store, bleeding to death on the floor, just the only child of richard martinez. does it feel like a year? >> no. i don't even -- it's all a blur to me. if i could trade all of the remaining days that i have left in my life for one more day with my son, i'd do it. >> reporter: we first met richard martinez a year ago. here when you walked in front of the cameras at the sheriff's press conference. >> they talk about gun rights. what about chris' right to live? >> what was it that drove you to do that? >> it wasn't a very rational decision i have to tell you. i mean i just did it. i can't accept the way he died. it was preventable. and it's going on every single day in this country. too many have died. we should say to ourselves, not one more. >> reporter: an impassioned plea becomes a rallying cry at the university's memorial. not one more becomes a hashtag, then 2.4 million postcards and this grieving father joining forces with gun control group, every town for gun safety delivering them to lawmakers across the country. >> 60,00