Man, woman arrested for allegedly robbing mail carrier in Cedar Park By FOX 7 Austin Digital Team Published CEDAR PARK, Texas - Two people have been arrested for allegedly robbing a USPS mail carrier in Cedar Park last month. 29-year-old Alejandro Julian Garza and 31-year-old Skylar Renee Johnson were taken into custody in the 7000 block of Convict Hill Drive in Austin. Cedar Park police say a master key, a firearm, narcotics, and crates of mail with identifying information were also found. Garza and Johnson are being charged with multiple felonies at the state and federal level, according to Cedar Park police.