I wonder if this has to do with article I read the other day.

(From memory) there was a shooting in Acupulco a day or so ago which left like 8 dead. A local town security force arrested a guy and it turned into a gun battle. Then the feds showed up and attempted to arrest members of the local security force who fought back and some of them were killed also. It's nuts. Hope things stabilize down there. Feel awful for the people who have to put up with it all and used to really enjoy traveling in Mexico.