PASADENA >> A $20,000 reward for information leading to the arrest and/or conviction of those responsible for the murder of an Altadena man last December was approved Tuesday by the Los Angeles County Board of Supervisors.
Robert Arthur Calderon, 27, was gunned down about 10:45 p.m. on Dec. 18 in the 600 block of North Mentor Avenue, according to Pasadena police and Los Angeles County coroner officials.