cnn's sarah sidner now with more. and i think everybody who saw that press conference had a major just lump in their throat, understanding what has completely now been taken away. >> reporter: yeah. i mean, he stood up and no one was expecting it. he came out and he broke down in tears twice and then after he left, he broke down again. he was sending a message, really, to families. he says you think it can't happen to you? well, it can. my son christopher is dead. he died last night. now, we understand that christopher is 20 years old, that he was going to get food at a market and he was killed then. he never made it to the hospital. i want to let you listen to his father richard martinez who was choked up several times and completely distraught as he tried to describe how he felt and what happened to his family. >> i'm going to try to get through this. my name is richard martinez, regular spelling m-a-r-t-i-n-e-z. my son's name was christopher ross martinez, he was 20 years old and he died last night. i've written ou