The restaurant was full of families and children at the time of the shooting, which was all captured on surveillance cameras. Those who didn't initially flee were allowed to leave in groups after police arrived, many still clutching balloons and birthday gifts.
"Those sounds of gun shots will live on with those kids for the rest of their lives, and every time they pass this place they're gonna think of how awful that was," one witness, John DeTaeye, told the site.
Chairs' family said she was especially excited about the arrival of her now four-week-old girl, having been a mom to four boys.
"She always wanted to help, even when she needed help of her own," he sister Joy said. "She loved children, especially her own nieces and nephews."
Pollion was denied bail; if convicted she faces a mandatory prison sentence of life without parole.