Man writes on a paper mache gun during a protest outside Chapultepec castle in Mexico City

Another weapon lost in the Obama administration’s failed Fast and Furious gun-tracking operation has purportedly been traced to two more killings, including the fatal shooting of a police chief in Mexico.

The officer was killed Jan. 29 in the city of Hostotipaquillo when gunmen intercepted his patrol car and opened fire, according to Justice Department records obtained by The Los Angeles Times. The chief’s bodyguard was also killed and a second bodyguard and the chief’s wife were wounded.

Operation Fast and Furious was run out of an Alcohol, Tobacco, Firearms and Explosives field office in Arizona. The plan was to sell guns to buyers and trace them in the black market as the crossed the U.S.-Mexico border, with the expectation they would lead federal officials to drug cartel leaders.