Background
Costello, David W. was born on August 30, 1957 in Canonsburg, Pennsylvania, United States.
Costello, David W. was born on August 30, 1957 in Canonsburg, Pennsylvania, United States.
University of Dayton (Bachelor of Arts, 1979). Ohio Northern University (Juris Doctor, 1984).
Admitted to the bar, 1984, Pennsylvania and United States. District Court, Eastern District of Pennsylvania. Assistant County Public Defender, 1991-1993.