Chicago police officer arrested in teenager's beating

A Chicago police officer was arrested over the weekend in the off-duty beating of a 15-year-old student - the third time this year that similar allegations have emerged.

Robert Gallegos, who is charged with aggravated battery, appeared on closed-circuit television Sunday afternoon in a Cook County courtroom, where a judge set bond at $100,000.

The ten-year police veteran was arrested Saturday - four days after the Ju�rez High School student suffered a broken jaw and other injuries in the alleged beating, the Chicago Police Department announced in Sunday statement.

Gallegos attacked Eduardo Cardenas in an alley Wednesday as the teen walked with two young women, …