Amazing Racer Honors Slain Friend

crime scene with police tape and body outline

As Kelly McCorkle was finishing third in "Amazing Race 7" this past season, she struggled with the knowledge that her best friend had been brutally stabbed to death on Halloween night.

McCorkle and Leslie Mazzara met when they were 14, in South Carolina, and hit it off instantly.

Mazzara eventually moved to California's posh Napa Valley, where tragedy struck.

On Halloween night, someone broke into the home Mazzara, 26, shared with two roommates and brutally stabbed Mazzara and Adriane Insogna to death. The third roommate managed to escape, and called 911.

The slayings remain unsolved,

48 Hours correspondent Bill Lagatutta.

He says Napa's been called one of the prettiest places on earth. It's where billionaires buy mansions and movie moguls such as "The Godfather" director Francis Ford Coppola buy vineyards. And every day, tourists arrive to soak up the local flavor.

It's hard, says Lagatutta, to imagine a more unlikely setting for murder. But what happened there sounds more like the plot of a grisly slasher film than the true tragedy it is.

"We've seen all those horror movies," says Mazzara's mother, Kathy Mazzara. "And this is worse than a horror movie. This is real."