Kevin McCarthy elected Speaker of the House; How police tracked down the Idaho college murders suspect; 'GMA' revisits trip to Walt Disney World over the holidays.

"GMA" anchor Michael Strahan's interview with Prince Harry ("Spare"); former congresswoman Gabby Giffords and Sen. Mark Kelly (D-AZ) on gun violence prevention; actress Rosie Perez ("Your Honor"); co-authors Rev. Wheeler Parker Jr. and lawyer, journalist and professor Christopher Benson ("A Few Days Full of Trouble"); a performance by Tasha Cobbs Leonard.