People demand justice for murdered Mayor Alejandro Arcos in Chilpancingo, Guerrero state, Mexico, Thursday, Oct. 10, 2024. (AP Photo/Alejandrino Gonzalez)

People attend a march to demand justice for murdered Mayor Alejandro Arcos in Chilpancingo, Guerrero state, Mexico, Thursday, Oct. 10, 2024. (AP Photo/Alejandrino Gonzalez)

People demand justice for murdered Mayor Alejandro Arcos in Chilpancingo, Guerrero state, Mexico, Thursday, Oct. 10, 2024. (AP Photo/Alejandrino Gonzalez)

Gustavo Alarcon is sworn-in as mayor of Chilpancingo, Guerrero state, Mexico, Thursday, Oct. 10, 2024, days after former Mayor Alejandro Arcos was killed less than a week after taking office. (AP Photo/Alejandrino Gonzalez)

People demand justice for murdered Mayor Alejandro Arcos in Chilpancingo, Guerrero state, Mexico, Thursday, Oct. 10, 2024. (AP Photo/Alejandrino Gonzalez)