The Broken-hearted Detective(1994)
(The second book in the Vinnie Altobelli Mystery series)
A novel by Milton Bass
Surviving a heart attack only to fall in love with his nurse, freelance gumshoe Vinnie Altobelli is distressed at her kidnapping, and when inquiries take him to the Southwest, he finds a squad of helpers--including another enamored patient.
Used availability for Milton Bass's The Broken-hearted Detective
November 1994 : USA Mass Market Paperback