Do you
a) Call the cops
b) Broadcast it on twitter
c) Go to the BevMo downstairs and buy liquor
[...]
Entertainment journalist Allison McNamara was shopping at the store when she encountered a screaming woman in the aisle that separated the skin-care and kitchen sections.
"She was yelling 'I'm bipolar. There's no witness protection program.' " McNamara said she watched helplessly as the woman plunged a knife into the upper back and shoulder of a male shopper. He had crouched down and covered up to fend off the blows, she said.
"You could see where the knife was going into his back. The knife had ridges and a tag on it. She was going as fast and strong as she could. Four to 6 inches were covered in blood. She looked like she was going to stab everyone there," McNamara said.
Moments later, the woman looked straight at McNamara, who immediately bolted out of the store with other shoppers and employees. McNamara immediately sent out a Twitter message telling people what she had seen.
[...]