Arlington police suspect hit-and-run in death of person found unconscious on Collins Street The department has asked for the public’s help identifying a motorist in the incident. File photo.(File) 9:33 PM on Jul 16, 2021 CDT Arlington police are asking for the public’s help locating a motorist who they believe fatally hit a person before leaving the scene. Around 3:31 a.m. Friday, Arlington police were called to the 2100 block of North Collins Street about a person lying unconscious near the road. Police said they found no evidence of a crash but believe that a hit-and-run had occurred, based on the person’s injuries. The victim, who wasn’t identified Friday, was taken to a hospital, where they were pronounced dead.