The fourth day of testimony is underway in the trial of a man accused of killing a woman in Dubuque. 61 year old Mark Fishler of Dubuque is charged in Iowa District Court of Dubuque County with first-degree murder in connection with the death of 80 year old Berniece Williamson of Dubuque in July 2021. Dubuque police investigator Kurt Rosenthal returned to the witness stand this morning and testified about traffic camera surveillance footage of Fishler’s vehicle on July 14th and 15th, 2021.
