The girl fell from the fourth floor window shortly before 5 p.m. Saturday. She fell in the back of the building and landed in a parking lot.
Sources say the child's mother was taking a nap. There was an adult watching the child at the time, but the little girl reportedly climbed and went through the top portion of the window.
She was transported to Lincoln Hospital, where she was pronounced dead.
"I feel for this family and I don't even know who it is. It might be my neighbors, I don't know. I pray for them," said Ana Roman.
It is unclear whether the window had window guards, or if that would have prevented it, since they likely would not have covered the top half of the window.
Police do not suspect any criminality.
The name of the child has not yet been released.