SAN JOSE — Federal authorities have announced the arrest of an alleged accomplice to a carjacking and robbery suspect who shot and wounded a San Jose police sergeant before he was killed last week during a violent downtown clash that ended a multi-county chase that included two earlier police gunfights. According to the marshals service, SJPD detectives “immediately identified Macias as Husien’s accomplice who dropped him off at the San Jose car dealership. According to San Jose police, after the Corvette theft in Sacramento, Husien committed robberies at a minimart and a San Jose liquor store. The following day, he was suspected of additional robberies on the Peninsula and again in San Jose. Husien was spotted in the stolen Corvette in San Jose on Jan. 21, but police lost track of him and later found the car abandoned.