The coroner's inquest into the death of Moncton teen Ashley Smith will hear testimony from Chris Whalen, a psychiatric nurse at the Regional Mental Health Centre in St. Thomas, Ont., on Wednesday.

On Tuesday, jurors heard from Janice Vandevooren, the director of the forensic psychiatry program and Dr. Jack Ellis both from St. Thomas Psychiatric Hospital.

Smith was 19 when she died at the Grand Valley Institution for Women in Kitchener, Ont., in October 2007, after she tied a piece of cloth around her neck while guards, who were ordered not to intervene, stood outside her cell door and watched.

The inquest, which started on Jan. 14, has heard testimony from Smith's mother, several guards and a prison supervisor who said they were uncomfortable with orders to ignore Smith and not enter her cell to remove ligatures around her neck as long as she was breathing.

CBC reporter Jessica Doria-Brown is covering the coroner's inquest.