Turf Wars Between Mexican Cartels Continue
Via the BBC: Bodies hung from bridge in Cuernavaca, Mexico
The four men had been decapitated and mutilated before being hung by their ankles from the bridge outside Cuernavaca, in the state of Morelos.
This appears to be linked to a contest for control of the Beltran Leyva cartel.
The piece has this map showing the various cartels and their areas of influence: