Security cameras capture violent attack.
Detroit police are on the lookout for a woman who stabbed a man for his cell phone.
The incident was caught on surveillance video.
It happened Saturday at a gas station near the Boston Edison neighborhood.
A nearby camera captured Ross on his cell phone, being stalked by the woman.
When he turned his back she cut him across his neck and the back of his head.
"I turned to the side. I didn't know what had happened. Then I turned and saw she had a yellow razor in her hand," said Ross.