The Left snickers at the idea of evil, but here it is in bold relief.

The young marine received the highest military honors that the Mexican state could offer. Killed during a raid that ended the life of a notorious drug lord, the marine was buried a hero, ushered to his grave by an honor guard of commandos in camouflage, his mother awarded a folded flag.

Hours later, the grieving mother, the marine’s sister, his brother and an aunt were mowed down by gunmen in a revenge attack that sent a chilling message to the Mexican military combating drug traffickers.

The slaughter of Melquisedet Angulo Cordova’s family early Tuesday horrified Mexicans seemingly inured to a drug-war brutality that has claimed more than 15,000 lives in three years of spectacular violence. The killing, especially, of a mother seemed to violate the most basic code of conduct that even coldblooded hit men and traffickers obeyed.

And then there are coldblooded regimes that murder their citizens in the streets.