James J. Cudney 
Broken Heart Attack [EPUB ebook] 

Who killed Gwendolyn Paddington?
When an extra ticket becomes available to see the dress rehearsal of King Lear, Kellan tags along with Nana D and her buddies. But when one of them dies of an apparent heart attack in the middle of second act, Nana D asks Kellan to investigate.
With family members in debt and secret meetings, Kellan learns that the Paddingtons might not be as clean-cut as everyone thinks. Can Kellan find Gwendolyn’s killer, or will he get caught up in his own stage fright?