Boston Marathon bomb suspects' sister 'heartbroken' Police said she was cooperating with the investigation and was "heartbroken, surprised and upset," though she told reporters she wasn't sure the accusations against her brothers were true. The woman, identified by local police as Ailina Tsarnaeva, told federal agents she had not been in contact with her brothers for years, according to Police Director Michael Indri on Friday. "The main concern was to confirm that there was no contact made one way or the other, and I'm confident that the FBI has confirmed that," he said. Dzhokhar Tsarnaev is still at large. Federal agents searched the home and left with a computer and other electronics. Early in the day, she spoke through a barely open door to News12 New Jersey and The Star-Ledger newspaper, telling them she was sorry for the families that lost loved ones "the same way I lost my loved one." "I'm hurt for everyone that's been hurt," she said. Heavily armed FBI agents are on the scene on Norfolk Street in Cambridge, Massachusettes. Her brother Tamerlan Tsarnaev was killed overnight in a shootout with police outside Boston. Her younger brother remains at large. "He was a great person," the woman said of her dead brother. I thought I knew him. I never would have expected that from him. He is a kind and loving man. The cops took his life away just the same way he took others' lives away, if that's even true. At the end of the day, no one knows the truth. "I have no idea what got into them," she said. Indri said the woman was cooperating with the FBI. "She's heartbroken, surprised and upset like we all are," he said. A woman who described herself as a friend of Ailina described a different relationship between the woman and the elder brother. Vicki Colon said the woman feared him because "he used to beat her." Colon said she met the two brothers during a visit to Massachusetts a couple years ago. She said the younger brother was very quiet.