(KCEN) -- Police in Dallas, are searching for a crook responsible for a brutal, senseless robbery.
Security footage from a small grocery store shows the robber savagely beating a store clerk.
For some reason the clerk came out from behind the protective glass, and the robber slashed his throat.
He then dragged the clerk down an aisle stocked with hardware and proceeded to beat the clerk with several hammers.
The victim's injuries are so severe, he can no longer speak.
So police are relying on the security video to help catch the crook.