CHICAGO (NewsNation Now) — A citizen’s arrest or cold-blooded murder? That is the choice before the jury in the killing of Ahmaud Arbery. We’ve got the highlights from Monday’s closing arguments. Which side made the better case?

Then, holiday cheer turned into screams of agony in Waukesha, Wisconsin. NewsNation’s Keleigh Beesley joins us live with the latest updates on the deadly Christmas parade.

Former FBI agent and bomb technician Jim Maxwell, whose specialty is active shooter training, joins us to talk about whether holiday gatherings are soft targets.

And we have the latest from the Gabby Petito investigation. It has been two months since her remains were found, but the case is still open and active. Why is it taking so long for law enforcement to say “case closed”? Former FBI agent Jennifer Coffindaffer weighs in.

Plus, investigative journalist Vicky Ward joins the show to discuss “Chasing Ghislaine,” the docuseries that looks at Jeffrey Epstein’s lover, confidante and alleged accomplice.

NewsNation’s Brian Entin fills in for Ashleigh on this edition of “Banfield.”