A man has repeatedly robbed the same Wal-Mart, once using a gun covered in newspaper. “48 Hours” Crimesider’s Graham Kates talks to CBSN about the case. Source

Milwaukee is one of several U.S. cities to experience a spike in homicides. Ed Flynn, Milwaukee’s chief of police, tells CBS News the increase is a combination of several factors. In this interview with Adriana Diaz, Flynn explains why he thinks his city may have reached a “tipping point.” Source

The trial of Colorado theater shooter James Holmes has reached the closing arguments stage. CBS News’ Rikki Klieman talks to CBSN. Source

A deal to curb Iran’s nuclear program has been reached. CBS News’ Nancy Cordes and Major Garrett join CBSN to discuss. Source

In this week’s edition of “Sounds of the Toyota Green Room,” comedian Jim Gaffigan chats with Carnival CEO Arnold Donald. Source

Actor Rob Lowe tells CBS News’ Lauren Moraski the story behind his viral DubSmash lip-sync video and what his typical Saturday night looks like. Source

Comcast is joining the streaming wars. The company plans to roll out a web-based TV service for $15 a month. CNET senior editor Iyaz Akhtar joins CBSN with the details. Source

Typically, magazine photo shoots take months of planning. But for the latest issue of “O, The Oprah Magazine,” staff decided to take a slightly different approach. “CBS This Morning” co-host and editor-at-large of “O” Gayle King joins CBSN with more on what inspired a spontaneous cover shoot. Source

Nick Dietz compiles some of the latest and greatest viral videos, including Denver “The Guilty Dog” showing her disdain for her ear medicine and a seagull that steals a GoPro. To see these videos in their entirety, click HERE. Source

Medical experts and law enforcement are sounding the alarm about the dangers of a cheap new synthetic drug called flakka. It can cause psychotic breakdowns and hallucinations when people take it, and it’s described as being more powerful than heroin or cocaine. Mark Albert reports. Source