Neighbors at the Brooklyn building where a 64-year-old woman died amid extremely cold temperatures last week said they tried desperately to help her all night long, but she would not come inside. The other was a 90-year-old Crown Heights woman with dementia who neighbors said wandered out of her apartment building Friday night. She was found dead Saturday morning in the snow behind another apartment building on her block. She would often come inside their building for shelter, they said, adding that they did not know if she had immediate relatives nearby. He disappeared shortly thereafter, before first responders arrived, according to the neighbors.