Now Playing: Skier dies after avalanche at top ski resort

Now Playing: 26-year-old man on trip with dad killed in New Mexico avalanche

Now Playing: Skier dies in avalanche near Aspen

Now Playing: Urgent manhunt for suspect who killed teen at a mall

Now Playing: News headlines today: Jan. 22, 2019

Now Playing: 18-year-old gunned down at mall, suspect at-large: Police

Now Playing: Family pleads for help after 23-year-old vanishes

Now Playing: Los Angeles public school teachers to stay on picket lines as talks continue

Now Playing: Deadly arctic blast sweeps Northeast

Now Playing: DIY Super Bowl mugs are sure to be a touchdown at your party

Now Playing: Remembering and honoring Dr. Martin Luther King Jr.

Now Playing: Referee misses crucial pass interference penalty in NFC championship game

Now Playing: Officer shot and killed in Alabama

Now Playing: Confrontation between teenager wearing MAGA hat and Native American protestor

Now Playing: Giuliani extends timeline for the Trump Tower Moscow talks

Now Playing: Second deadly avalanche in Colorado

Now Playing: Life-threatening cold grips the East Coast

Now Playing: Deadly plane crash leaves 2 dead

Now Playing: 1 dead in avalanche outside Aspen: Sheriff

Now Playing: Michael and Sara discuss the importance of Martin Luther King Jr. and his influence