In Milwaukee, Wisconsin, she covered legal and political beats, and received numerous awards for her investigative and general assignment reporting.
When she left Milwaukee for San Francisco to anchor the KRON weekend news, a city proclamation naming a day in her honor was issued.
Her work has ranged from political reporting to feature pieces, covering everything from papal visits to mafia trials.
She has also covered the peace plan process in Northern Ireland, the Women's World Cup Championship and the 1994 Northridge earthquake.
Heenan has been cited in local newspaper "best of" lists as one of the top anchors in the San Francisco Bay Area.