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Sneak peek: Shelley's Last Breath

Name: Sneak peek: Shelley's Last Breath
Uploaded: 2010-05-06T05:43:28-0400
Duration: 3 min 14 s
Description: A couple's Caribbean vacation ends in a tragic scuba accident... or was it murder? Get your first look at this week's "48 Hours" episode. The mystery continues Saturday, March 5 at 10 p.m. ET/PT.

A couple's Caribbean vacation ends in a tragic scuba accident... or was it murder? Get your first look at this week's "48 Hours" episode. The mystery continues Saturday, March 5 at 10 p.m. ET/PT.