A shootout between rival gangs in Mexico City left six people dead and four wounded, and police in the north-central state of Guanajuato found two heads and bags of severed body parts scattered on roadsides in two cities there.
The violent and fast-growing Jalisco cartel has been expanding into both Mexico City and Guanajuato, though it was unclear immediately who was responsible for the killings.
Guanajuato state prosecutors said the gory discoveries there began Sunday, when two severed human heads were found on the side of a highway in the town of Romita . . .
