Mexico fights its own illegal immigration problem
Police suspected in death of young Guatemalan.
By Dudley Althaus
dudley.althaus@chron.com
mysanantonio.com
Updated 12:01 a.m., Sunday, August 21, 2011

TULTITLAN, Mexico — The killing of a Guatemalan man has again rubbed raw Mexicans' often contentious relations with the thousands of Central Americans illegally traversing the country on their way to the United States.

Julio Cardona, 19, had arrived this month in Tultitlan, a gritty factory and rail hub on Mexico City's northern edge, where his battered body was found five days later beside the railroad tracks. Hours before, he had been arrested by city police for allegedly robbing several Mexican men.

“They had beaten him to death with stones,â€