Horrifying moment crocodile clamps jaws down on Thai zookeeper's head in stunt gone wrong

Alarming footage has surfaced of a crocodile viciously clamping its jaws down on a zookeeper's head before violently whirling him from side to side.

A tourist filmed the trick-gone-wrong last Sunday at a free crocodile show on the island of Ko Samui, Thailand.

In the horrifying video, the zookeeper kneels before the reptile and teases it with wooden sticks inside its open jaw