Police said Saturday they are seeking a second car that may be associated with Bruce Pardo, a gunman who dressed as Santa Claus who methodically killed nine people inside a Covina house on Christmas Eve.

The car a 1999 gray Toyota Rav4, may be rigged to explode.

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Meanwhile, a gray 1999 Toyota Rav4 rented by the suspect, Bruce Pardo, in recent weeks remains unaccounted for, Covina police Lt. Pat Buchanan.

Anyone who sees the SUV, which has a license plate number of 5RYD562, is advised not to approach it, the lieutenant said.

“We believe it may be booby trapped or contain explosives,” he said.

A Dodge Caliber rented by the suspect and abandoned in Sylmar was rigged to explode when examined by investigators.