A computer hard drive holds hundreds of secrets.

Every keystroke, every download, every deletion tells a story.

But if someone downloads a song about murder, does it make him a killer? It was a hot August night in Jacksonville, Florida, and a time of celebration for April and Justin Barber.

It was their third wedding anniversary, and April was about

to finish her training as a radiology technician. April Barber had gone into the field of

oncology, specifically radiology-type treatment for cancer patients, which was inspired by her mother's death with cancer.

Justin had good news, too. He just got a job as a financial analyst for a large lumber company.

He was a very good guy. I mean, very smart, very successful, everything going for him. I mean, just like my sister.

I mean, they were, too of a kind, I guess.

The couple's anniversary dinner was at an Italian restaurant.

Later, they took a walk along the beach.

But their romantic evening ended there.

When a man with a gun demanded money,

April diverted the man's attention.

Justin tried to grab the gun.

Shots were fired.

And that's the last thing Justin remembered.

When he regained consciousness, he realized he had been shot and was bleeding.

He found April unconscious and faced down in the water.

Justin dragged April's body about 100 yards toward their car,

but his wounds made it impossible to carry her up the long flight of stairs.

So he left her near the boardwalk and drove for help.

...