Now Playing: ‘A horrific scene’: The latest from a mourning Pittsburgh community

Now Playing: Gunman slaughters Pittsburgh synagogue worshippers

Now Playing: Remembering the victims of Pittsburgh synagogue shooting

Now Playing: Pittsburgh comes together in wake of horrific synagogue shooting

Now Playing: Student captures panic on video as teen shot in high school

Now Playing: Pittsburgh residents speak out after synagogue massacre

Now Playing: Attorneys for man in suspected bomb case want more testing

Now Playing: Trump and first lady to visit Pittsburgh after synagogue attack

Now Playing: Pittsburgh rabbi: Congregants’ screams ‘seared in my brain’

Now Playing: Judge: No bail for suspect in Pittsburgh synagogue massacre

Now Playing: Couple claims to have found hidden camera in room on cruise ship

Now Playing: New storm bringing snow from Pacific Northwest to the Rockies

Now Playing: US military sending 5,200 troops to southern border

Now Playing: Healing from abroad

Now Playing: Video of white woman’s racist rant against two black sisters goes viral

Now Playing: Rabbi says he will never forget the horror during deadly Pittsburgh synagogue attack

Now Playing: Missing 2-year-old vanished from stroller Sunday morning

Now Playing: Suspected mail bomber Cesar Sayoc seen smiling in court appearance

Now Playing: Judge Greg Mathis on how Aretha Franklin inspired him to help the Flint water crisis

Now Playing: Equality in North Carolina