Thanks to good old-fashioned detective work and using a private company’s sophisticated DNA sleuthing for the first time, the Westminster Police Department was able to arrest and charge a man suspected of murdering a young woman. Aryan Vito Smith, 26, was arrested in May on suspicion of killing Treeanna Nichols, a 22-year-old Pasadena woman who was found stabbed to death at the Westminster Quality Inn & Suites. Smith, who lived in Westminster, was charged with murder and is being held in lieu of $1 million bail. He has pleaded not guilty. The trail to finding Treeanna’s killer started out cold.…