'It feels like a nightmare,' UVA football coach says after 3 players killed in mass shooting.

Three football players were killed and two other students were injured in the Sunday night shooting.

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What happened to Shanquella Robinson? l Nightline

What happened to Shanquella Robinson? l Nightline

Authorities in Mexico investigate the murder of 25-year-old Shanquella Robinson, who was killed while on vacation with her friends, as her family demands justice. WATCH NIGHTLINE EPISODES: ALSO AVAILABLE ON HULU: #nightline

John Leguizamo on his latest role in Christmas dark comedy “Violent Night” l Nightline.

John Leguizamo on his latest role in Christmas dark comedy “Violent Night” l Nightline.

Actor John Leguizamo discusses his latest role in the unconventional Christmas film “Violent Night,” his career and what it means to be representing the Latinx community in Hollywood. WATCH NIGHTLINE EPISODES: ALSO AVAILABLE ON HULU: #nightline

'Retrograde' filmmaker seeks to spotlight those 'left behind' in Afghanistan.

'Retrograde' filmmaker seeks to spotlight those 'left behind' in Afghanistan.

ABC News' Phil Lipof spoke with Academy Award-nominated and Emmy Award-winning director Matthew Heineman about his new documentary "Retrograde" about the final months of the war in Afghanistan.

Russian activist on decision to speak out 'in memory of my daughter'.

Russian activist on decision to speak out 'in memory of my daughter'.

ABC News’ Stephanie Ramos sat down with Russian civil rights activist Anastasia Shevchenko to discuss her new documentary “Anastasia” and her journey for closure.

Congress makes push for nationwide digital privacy regulations.

Congress makes push for nationwide digital privacy regulations.

ABC News' Devin Dwyer reports on a bipartisan effort in Congress to protect digital privacy online, especially for children, with comprehensive national regulations.