Diego Santoy Riveroll

Mexican university student who is accused of stabbing his ex-girlfriend, Erika Peña Coss, and killing her two young siblings in the City of Monterrey on March 2, 2006. He was captured by police on March 7, 2006, at a roadblock in Oaxaca. According to Erika, she had broken-up with Diego for personal reasons, but he kept calling and seeking her, unable to accept it. In March 2, 2006, she woke up early in the morning and found Santoy inside the house wearing a mask. She said he silenced her and started beating her with a hammer in the parietal. Then, he asked her to stab him, which she refused to do, so he threatened to kill her and then commit suicide to "catch up" with her. He proceeded to stab her in the neck and the back. Érika was almost dead when Santoy left. Allegedly badly hurt- since later it was stated that her injuries were severe and required a six hour surgery to save her life- she crawled to the office in the back of her house and asked the secretary to call for an ambulance. Diego had indeed killed her younger siblings and had badly beaten the servant. While all of this was happening during a lapse of five hours, during which Azura, one of Érika's older sisters, assured she didn't know what was going on. He was sentenced to 138 years in prison on October 11, 2011. (with informations from murderpedia)