





Now Playing: Today may be the day to visit retail stores in person
Now Playing: New twist in murder case of woman accused of killing twin sister
Now Playing: Pre-teen prodigy set to make Carnegie Hall debut
Now Playing: Teen named a ‘person of interest’ in grandmother’s death detained near Canadian border
Now Playing: Online Black Friday sales increase 15 percent from 2016
Now Playing: Retail stores take a hit this Black Friday
Now Playing: Accomplished fashion writer found stabbed to death at her home: Part 1
Now Playing: Murdered fashion writer’s ex comes under suspicion: Part 2
Now Playing: Father of Christa Worthington’s child on their once-secret relationship: Part 3
Now Playing: Former lover, father of child was once a suspect in Worthington murder: Part 4
Now Playing: Police ask men in Truro, Massachusetts for DNA samples in murder investigation: Part 5
Now Playing: Police make an arrest for the murder of Christa Worthington: Part 6
Now Playing: Chris McCowen goes on trial for Christa Worthington’s murder: Part 7
Now Playing: Chris McCowen’s post-arrest police interview comes into question: Part 8
Now Playing: What 2 jurors say happened during Chris McCowen trial deliberations: Part 9
Now Playing: Where Christa Worthington’s daughter is today: Part 11
Now Playing: Chris McCowen shares his side of the Christa Worthington case: Part 10
Now Playing: Massive effort to help animals in need of homes
Now Playing: Manhunt underway for teenager on the run
Now Playing: Warning: ‘Porch Pirates’ on the prowl