While many families know their loved ones were killed on 9/11, they have never received remains. The dedicated team at the New York Office of the Chief Medical Examiner is still searching, 25 years on. Rhian Lubin reports

Barbara Butcher spent 25 years working at the New York City Medical Examiner's Office, including as a death investigator at Ground Zero after the September 11 terrorist attacks.

While many families know their loved ones were killed on 9/11, they have never received remains. The dedicated team at the New York Office of the Chief Medical Examiner is still…