Bodies missing after Mexican drug cartel massacre caught on video

Prosecutors say they cannot determine how many were killed because attackers cleaned up the scene and removed any bodies

Mexicans have been left wondering what happened to about a dozen men who disappeared after they were seen lined up against a wall by drug cartel gunmen.

In a video apparently filmed by a resident of the town San Jose de Gracia in the western state of Michoaan and posted on social media, bursts of gunfire broke out and smoke covered the scene.