Watch the Video if you can. Grandmother of Carlsbad teen murder suspect speaks out amid new images (10news.com) His grandmother says-- "He would not have done this. It's like stabbing me in the neck," added Hernandez. Hernandez said that he had been living with her and doing online schooling for the last two months after moving to San Diego from Hawaii. She described him as a kind young man who is incapable of violence. "We go to the store and he's helping little old ladies pick out which watermelons are good and which grapes are the sweetest and holding doors open. So, this just really baffles me," she stated. "They got the wrong person. The killer's still out there." The teen's attorneys said that no weapons were found on him and that he had no injuries or signs of struggle on his body.