Nashville Mayor John Cooper, police chief John Drake and fire chief William Swann updated reporters Friday evening about 12 hours after a massive blast wounded three in the city’s downtown area. Drake said tissue that is believed to be human remains was found at the scene. Watch the briefing. Source

Police said an RV parked in downtown Nashville played a recording warning a bomb would detonate – and then it exploded. Source

On this week’s “On The Road,” Steve Hartman teams up with a special “Secret Santa” to deliver gifts to essential workers who are in desperate need of financial help. In the weeks before Christmas, Secret Santa planned to give away nearly $100,000 in total – to complete strangers. Source

For the first time since the Notre Dame cathedral was damaged in fire, a Christmas choir — this time wearing hard hats — rang in the holiday. The 850-year-old cathedral is slowly being rebuilt. Roxana Saberi reports. Source

For years, Andrea Bocelli has been providing hope and comfort through music, especially in a challenging year like 2020. His message for the holidays is: There is always hope. It is the theme of his new album and his Christmas concert, which explored the Christmas through the eyes of his 8-year-old daughter, “CBS Evening News” anchor Norah O’Donnell spoke with Bocelli. Source

A massive explosion on Christmas morning in downtown Nashville, Tennessee, left at least three people wounded. Authorities described the explosion as “intentional. Jessi Mitchell has more. Source

Investigators are now combing the crime scene in Nashville, Tennessee, starting with the identification of the R.V. The explosion scattered debris for several blocks setting cars on fire and shattering buildings. Jeff Pegues reports. Source

More than 120,000 people are being treated for coronavirus in the U.S. With the hospitals already overwhelmed, and concerns about the new, far more infectious covid variant now spreading in the United Kingdom, the C.D.C. is cracking down on documentation prior to entering the U.S. Lilia Luciano reports. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Major Garrett.” Source

Only a handful of parishioners were allowed inside Christmas mass in Los Angeles, where every 10 minutes, someone dies from COVID. Source