Watch On the Case with Paula Zahn Season 5 Online

In a small town outside Atlanta, a young mother is gunned down in broad daylight, while stunned eyewitnesses search for cover. The victim, Heather Strube, was in a Target parking lot to pick up her 18-month-old son from her estranged husband. Police must unravel the mysterious killing with little to go on beyond a bizarre description of the brazen killer and the surveillance video of him walking away from the crime scene.