Police say he drove his car for three blocks in Times Square, hitting nearly two dozen people before steel security barriers finally stopped him. An 18-year-old tourist, Alyssa Elsman, from Portage, Michigan was killed. Her 13-year-old sister was among the 22 injured, four of them critically.
It's unclear if Rojas has a lawyer for his arraignment Friday.
Officials say he had served in the U.S. Navy but was discharged following disciplinary problems.