A brutal attack was caught on security camera at a Best Buy in West Hollywood and now authorities are looking for the suspect.

The victim was looking at electronics in the store when the suspect approached him from behind and punched him in the back of the head, knocking the victim to the ground and stealing his phone.

Investigators warn this person may have done something similar before and will likely do it again.

The suspect is described as a black man in his early 30s wearing a black hoodie and tan shorts.

If you recognize the man you are urged to call the West Hollywood Sheriff's Department.

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