A Brownsville man faced a judge on Thursday morning for the city's first murder of 2009.
Brownsville police arrested Rolando Garza on Wednesday afternoon for the shooting death of 30-year-old Aaron Castillo.
Investigators said the two were childhood friends but identified Garza as one of the gunmen in Castillo's murder.
Garza was arraigned at 10 a.m. Thursday.
A judge set his bond at $250,000.
Police are still searching for Randall Bolivar, who is considered another suspect in the murder.