Hollister police arrested a transient following two attempted carjackings on Friday. Authorities say that patrol units were dispatched to a gas station at Tres Pinos Road before mid morning to investigate reports of attempted vehicle theft. At the scene, officers located 33 year old Austin Downing. As he was confronted Downing became combative and was subdued with a taser. He was booked into San Benito County Jail on attempted carjacking, obstruction, and resisting arrest.