The scene of a shooting at a Colorado school was just a few miles from Columbine, one of the worst school massacres in U.S. history. Since then, thousands of students have experienced gun violence at school. Carter Evans reports. Source

The subpoena comes as Senate Majority Leader Mitch McConnell says the Russia investigation is over Source

For the first time, the FBI is giving the public a breakdown of its domestic terror investigations. CBS News chief Justice & Homeland Security correspondent Jeff Pegues joined “Red & Blue” with details. Source

At least four veterans took their lives last month Source

At least four veterans took their lives last month Source

A recent study found 40 percent of children who experience gun violence suffer from post-traumatic stress disorder Source

Kendrick Castillo, 18, tackled the gunman, allowing his classmates to escape and hide Source

Skip the flowers and give mom what she really wants — a night off Source

Trump claimed executive privilege over the full Mueller report, and his administration hasn’t ruled out trying to use privilege to stop special counsel Robert Mueller from testifying before Congress Source

Only Julián Castro has campaigned on ending ICE’s controversial 287(g) program Source