Two people have been detained in connection with the shooting and two firearms have been recovered Source

Pres. Trump meets with Prime Minister Theresa May: James Holzhauer’s winning streak ends Source

In the wake of the Parkland, Florida, school shooting, CBS News embeds with survivors and a grieving parent as they turn anguish into action. Source

Barr says Obama officials did not commit treason “as a legal matter”; Inside the discovery of the last known slave ship. Source

Arizona officials are moving toward revoking the license of the Hacienda HealthCare facility after another disturbing report Source

The FBI identified the suspect as 22-year-old Brian Isaack Clyde Source

A report in The New York Times says the U.S. is escalating its cyber responses to Russia by targeting its power grid. The report highlights how the U.S. military may be acting to counter Moscow’s aggression in cyberspace. CBS News intelligence and national security reporter Olivia Gazis joins CBSN to discuss the report. Source

The Toronto Raptors held their championship parade Monday after winning their first NBA Finals. And superstar Anthony Davis has been traded from the New Orleans Pelicans to the L.A. Lakers, a blockbuster deal that kicks off what’s expected to be a busy offseason. Bill Reiter, host of “Reiter’s Block” on CBS Sports HQ, joined CBSN to discuss the latest developments. Source

Heiress and fashion designer Gloria Vanderbilt has died. The mother of “60 Minutes” contributor and CNN anchor Anderson Cooper was 95 years old. Marc Liverman takes a look back at her life and legacy. Source

Officials in Dallas have identified the masked man who they say opened fire at the Earle Cabell Federal Building in downtown Dallas. The FBI says Brian Isaack Clyde, 22, was killed after a gunfight with federal officials outside the building. Source