. The former LAPD cop who has remained at large for a week following three fatal shootings is suspected of fleeing to Mexico, according to a federal document. A criminal complaint filed in federal court on Feb. 7 charges Chris Dorner with fleeing to avoid prosecution. It states that there was reason to believe he had crossed the border to Mexico. U.S. Marshals Service Inspector Craig McClusky wrote an affidavit included in the complaint the same day that the search for Dorner led to his burned truck in the mountain resort of Big Bear. McClusky recounted the Irvine Police Department’s request for assistance from the U.S. Marshal Service in finding Dorner after he became in the Feb. 3 killing of Keith Lawrence and Monica Quan, who is the daughter of an LAPD official that Dorner referenced in his manifesto. McClusky described “ the recent observations of a suspect matching Dorner’s description attempting to flee to Mexico ,” and stated “ there is probable cause to believe that Dorner has moved and traveled in interstate and foreign commerce from California to Mexico” to avoid prosecution. The document also states that U.S. Marshals were tracking a Dorner associate identified as “J.Y.,” who had been spotted in Costa Mesa. On Monday, the Riverside County District Attorney’s office filed a charge of murder against Dorner in the shooting death of Officer Michael Crain, who was killed in what authorities described as an ambush. ” We felt the state of the evidence dictated there was no reason to withhold filing charges ,” Riverside County District Attorney Paul Zellerbach said. “ He’s a felon at large .” (View a PDF of affidavit here.) Surveillance footage of Dorner was acquired from Sports Chalet, a sporting goods store in a beachside city, on Feb. 1. The former police officer was seen carrying 2 small, yellow scuba tanks in the scuba section. Sources claim Dorner got the tanks refilled with oxygen. The video then shows Dorner leaving the scuba section with the 2 yellow tanks, along with another large, black scuba tank. Dorner then goes to the counter, and then has a friendly conversation with the cashier, at times laughing. Maria Lloyd ( @WritingsByMaria ) is the Business Manager for the Your Black World Network and Dr. Boyce Watkins. She is a graduate of Clark Atlanta University and an advocate of dismantling the prison industrial complex, increasing entrepreneurship, reforming education, and eradicating poverty.