ABC World News Tonight with David Muir

Correspondent Whit Johnson reports on the shooting inside a lecture hall at Brown University that killed two and injured nine; Senior Justice Correspondent Pierre Thomas has the latest on the person of interest detained by authorities amid an ongoing investigation into the university shooting; Foreign Correspondent Marcus Moore reports on the father and son suspects in a mass shooting at Australia's iconic Bondi Beach targeting a Hanukkah celebration according to authorities; and more on ABC World News Tonight. 

New details on Nick Reiner, son of actor and filmmaker Rob Reiner has been arrested for his parents' murders after police found them stabbed to death inside their Los Angeles home, Trevor Ault has the latest and David Muir looks back at Reiner's life and the lasting legacy he leaves behind; Whit Johnson reports on the urgent manhunt for the suspect in the deadly shooting at Brown University as authorities release new images of a person of interest and ask for the public's help; Britt Clennett has details on the father and son who authorities say targeted the jewish community celebrating first night of Hanukkah at Sydney's famed Bondi Beach, killing at least 15, and the heroic video showing a man tackling one of the gunmen while trying to save others; and more on tonight's broadcast of World News Tonight with David Muir. 

Trevor Ault reports on officials announcing Nick Reiner – the son of director Rob Reiner – will be charged with the murders of his parents, who were found stabbed to death; Whit Johnson has the latest on the urgent manhunt underway for the gunman wanted in the mass shooting at Brown University as investigators piece together a timeline of a suspect's movements before and after the attack; Mary Bruce has details on WH Chief of Staff Susie Wiles telling Vanity Fair that Pres. Trump has "an alcoholic's personality" and sharing her thoughts on the Epstein files; and more on tonight's broadcast of World News Tonight with David Muir.