*Note: In the print edition of Quest, this article was titled "Rounding Up the Usual -- and Not So Usual -- Suspects."

The scene is familiar to everyone who watches crime dramas. The safe has been opened, and the hotel guests' jewelry and other valuables are missing. What happened, and when, and who's responsible?

Part 1 of this series(Quest, Vol. 6, No. 2) addressed cardiomyopathy, the degeneration of heart muscle that often occurs in many neuromuscular diseases.

Cardiac problems are common in several neuromuscular disorders. They can be quite serious, particularly in Duchenne and Becker muscular dystrophy (DMD and BMD). In this, the first of a two-part series, we'll explore cardiomyopathy, the type of heart problem that's found most often in DMD and BMD and also occurs in some other neuromuscular conditions. (Read Part 2 of this series.)