Rafael "Rafa" Marquez is accused of having financial ties with Raul Flores Hernandez, a suspected drug trafficker with links to the Sinaloa cartel and the Jalisco New Generation gang.
Pacific resort of Zihuatanejo is one of few regions where federal forces are the dominant authority in Mexico and a town where the military detained the town's entire 246-strong municipal police force.
Damaso Lopez, a former security official, is believed to have helped the Sinaloa cartel druglord Joaquin "El Chapo" Guzman escape from a maximum security prison in 2001.
There are 56 drug cartels known to be operating in Mexico today. Twenty of them are based in Acapulco.
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