It involves the impact of a specific force to the chest at a specific moment in the cardiac cycle. One cardiologist told NPR that what happened to Hamlin was likely "a perfect storm of events."

The world is waiting for updates about Hamlin, who is in critical condition after suffering a cardiac arrest during Monday night's game against the Cincinnati Bengals. This is his second NFL season.

Fans showed their support for the Buffalo Bills safety by pouring more than $4 million into a fundraiser he started for kids in his hometown.

Tuesday on Political Rewind: Hundreds of documents from the January 6th Committee outline Georgia's importance to the effort to overturn the 2020 election. The Fulton County election probe may soon recommend criminal charges. And proposals to eliminate Georgia's runoff system continue.