Prosecutors: gunmen in Mexico massacre of 27 had a target

The gunmen who killed at least 27 people in an unregistered drug rehabilitation center in the central Mexican state of Guanajuato last week were looking for someone in particular, state prosecutors said Monday.In a statement, the Guanajuato state prosecutor’s office said that three suspected gunmen were in custody and allegedly belong to a criminal organization operating in the area, though the agency did not specify which group.The men arrived at the two-story rehabilitation center in Ira