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A knife-wielding Florida man who attempted a carjacking Thursday night quickly discovered that the vehicle he targeted was an undercover cop car occupied by a pair of armed plainclothes detectives, according to an arrest affidavit.

Dominique Albert, 27, allegedly approached the car on a St. Petersburg street around 9:45 PM and yanked open the passenger door. Albert, pictured at right, leaned into the auto while holding a steak knife in his right hand.