He was dead.

Oh, my God, he's dead!

A retired police officer was found shot to death in his bedroom,

but it was unclear exactly what happened.

Some of the evidence pointed to suicide,

while other signs suggested foul play.

But it took crime scene reconstruction,

an automated teller machine,

and some forensic textbooks in the victim's home

to write the final chapter in this real life, whodunit. Traverse City, Michigan is a beautiful

for those who love sailing and fishing.

And it was home to Dan and Cynthia McDonald

and their two teenage children.

58-year-old Dan McDonald was a retired police officer who worked part-time as a maintenance worker.

Cynthia was a freelance writer.

Everything seemed like a normal marriage.

Cindy taking charge all the time.

I mean, she was master of the household and the boss.

The last day in December in 1998 was a busy one for the McDonald family.

18-year-old Patrick was sleeping over at a friend's house.

Dan decided to sleep late. Cynthia and her 20-year-old Patrick was sleeping over at a friend's house. Dan decided to sleep late.

Cynthia and her 20-year-old daughter Erin spent the day shopping in Traverse City.

...