SPECIAL: Dad of missing tot girl Mariah Woods breaks down, ‘Baby, come home. Daddy loves you!’ PLUS: Is the Tampa serial killer nightmare over?

A 24-year-old McDonald's worker is accused of being the Tampa serial killer. Police arrested Howell Emanuel Donaldson III after his boss told police he brought a handgun to work. Donaldson is charged with 4 shooting deaths in recent weeks. Nancy Grace updates the case in this episode. Nancy is also closing following the search for Mariah Kay Woods, a 3-year-old who disappeared from her North Carolina bedroom. Her father Alex Woods visits with Nancy with hopes it will help find his daughter. Victims advocate Marc Klaas, criminal profiler Pat Brown, & psychologist Caryn Stark, lawyer/psychologist Dr. Brian Russell, forensics expert Joseph Scott Morgan, child advocate Ashley Willcott, RadarOnline reporter Alexis Tereszcuk and NewsInOnslow.com's Gerald Jackson also join Grace.

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