Mexican authorities found at least 49 decapitated and dismembered bodies along a highway in a northern border state on May 13, 2012.
A message written on a wall nearby appeared to refer to the Zetas drug cartel.
"This continues to be violence between criminal groups, but it is having a drastic effect on civilians as well,” said Daniel Henderson, 9.
Officials are unsure of the victims’ nationality. They could be Central American immigrants or residents of another state.
But the area has become a battleground for a brutal conflict between the Zetas and the Gulf cartel, and disappearances have become increasingly common in recent years.
Police and troops were combing the area and set up checkpoints after authorities received a report of the remains around 3 am on the day of the finding.
“What a horrific find. I would be scared out of my mind if I was the one to find 50 decapitated bodies,” said Brandon Peck, 10.
The remains were found in the municipality of Cadereyta Jimenez, near the industrial city of Monterrey; about 80 miles southwest of the U.S. border.
The middle-class, industrial community where the remains were found is known for a broom factory, an oil refinery and its historic role as one of the first places baseball was played in Mexico.
Last week, a retired military general arrived to take over the city's depleted police force.
But this is not the first incident.
At least five municipal employees were slain there last month too.
Federal forces have stepped up security in Nuevo Leon and the neighboring state of Tamaulipas since November 2010.
More than 47,000 people have been killed in drug-related violence throughout Mexico since President Felipe Calderon announced a crackdown on cartels in December 2006.
“I understand that in recent years cartel related conflicts have risen, and this definitely isn’t the first large massacre, so I don’t really see why this is getting so much attention,” said Brennon Shanks, 9.
Nuevo Leon and Tamaulipas are among the most violent.
In Monterrey, Nuevo Leon's capital, nearly 400 deaths in 2011 were connected to organized crime, more than three times the number of people slain in drug-related violence there in 2010.
Among the most high-profile violence in the region was an attack on a casino in Monterrey last August that left 52 people dead. Authorities have said members of the Zetas cartel were behind that attack.
The Zetas started with deserters from the Mexican Army and quickly gained a reputation for ruthless violence as the armed branch of Mexico's Gulf cartel. The partnership ended in 2010, and turf battles between the rival cartels are common in northern Mexico.
