Dr. Breene in “Family Ties (Part One)”

Paramedic Parker's breakdown left an immeasurable hole in the fabric of life in that firehouse. Mr. Parker seems to have become a sort of surrogate father for these employees and apparently helped them through difficulties encountered during and after 9/11. This role as father almost certainly contributed to his feeling that it was left to him to rectify what he saw as the closing of the 5-5 and therefore the destruction of his family.