Tucson, Arizona (CNN) -- First, Daniel Hernandez heard the shots ring out. Then, he heard someone yell, "Gun!"
Moments later, he was at Rep. Gabrielle Giffords' side. Less than a week after the 20-year-old intern started working for the congresswoman, he was using his bare hands to stop blood gushing from where a bullet had entered her head.
Hernandez, who trained as a certified nursing assistant, said he lifted Giffords' head to make it easier for her to breathe, then applied pressure to her wound.
"She was alert and conscious, but she wasn't able to speak, so the way she was communicating was by grabbing my hand and squeezing," Hernandez said. CNN
