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KNOW IT ALL: Friday's Top 7 Stories at NBC News

From the Louisiana movie theater shooting to the latest on the Sandra Bland death investigation, see the stories we're following today.

Good morning. Here are some of the stories we're following today:

1. Three Dead, 9 Injured After Gunman Opens Fire in Theater

A gunman killed two people and wounded nine others after standing up and opening fire about 20 minutes into a movie in Lafayette, Louisiana, police said. Lafayette Police Chief Jim Craft said the 58-year-old man used a handgun and took his own life when officers arrived at the scene within about a minute. Read more in NEWS.

2. Criminal Probe Sought Against Hillary Clinton Over Emails

Two inspectors general have requested the Justice Department begin a criminal probe into whether Clinton improperly stored classified emails on her private personal server, a source familiar with the issue told NBC News. Read more in POLITICS.

3. Obama: I'm Frustrated by Lack of 'Common Sense' Gun Laws

President Obama highlighted that gun violence had killed far more Americans than terrorism since 9/11 on Thursday and said it was “distressing” how the country lacked “common-sense” laws to tackle the problem. Read more in POLITICS.

4. 'Apocalyptic' Fire Races Across Thousands of California Acres

The Wragg fire on the outskirts of California's Napa Valley chewed through thousands of acres of steep, treacherous terrain Thursday, forcing mandatory evacuations of two small communities and threatening more than 200 structures, fire officials said. Read more in NEWS.

5. Donald Trump Tours U.S.-Mexico Border

Trump faced questions about immigration policy from reporters Thursday at the U.S.-Mexico border amid roiling controversy about his bombastic style and his controversial remarks about Mexican immigrants. Read more in POLITICS.

6. Sandra Bland Death Ruled a Suicide by Hanging

Warren Diepraam, the first assistant district attorney of Waller County, released the findings at a press conference. He said prosecutors had “full faith” in the state forensics agency that conducted the autopsy. Read more in NEWS.

7. Four-Year-Old Girl Spots House Fire, Helps Save Family

A 4-year-old Idaho girl is being hailed as a hero after helping save a family from their burning home. Read more in NEWS.