7 things to know now: Baton Rouge shooting; GOP convention; social media star murdered

Here's a roundup of news trending across the nation and world today.

What to know now:

1. Baton Rouge shootings: A former U.S. Marine shot and killed three Baton Rouge police officers and injured three others Sunday in the parking lot of a convenience store. The shooting came a week and a half after police in the city shot and killed Alton Sterling. Baton Rouge and other cities saw protests over Sterling's death. The shootings of the police officers on Sunday took place less than a mile from police headquarters in Baton Rouge.

2. It's convention time: The Republican National Convention gets underway Monday in Cleveland. The four-day event will feature political and celebrity appearances. Melania Trump, wife of presumptive GOP presidential candidate Donald Trump, is the keynote speaker on Monday night. In breaking with tradition – something the candidate is familiar with – Donald Trump may make an appearance at Monday's festivities. Some predict viewership for the Republican convention could set records.

3. Coup attempt in Turkey: The fallout from last week's attempted coup in Turkey continues. Turkey's state-run news agency says the Interior Ministry has fired upwards of 9,000 government employees across the country. President Recep Tayyip Erdogan said the coup attempt was the work of a U.S.-based Muslim cleric. The failed coup led to at least 294 deaths with more than 1,400 wounded. More than 6,000 have been arrested.

>>Why does the coup attempt in Turkey matter to the U.S.?

4. Honor killing: The brother of a Pakistani social media star and model says he is proud that he drugged and strangled his sister because "girls are born to stay home. Qandeel Baloch was killed by her brother, Waseem Baloch, Friday in her family home in Multan, Pakistan. Qandeel often posted images of herself on social media that flew in the face of traditional Pakistani life. She had nearly 750,000 followers on Facebook, and called herself a "modern day feminist." Waseem said his sister posing with a Muslim cleric was an outrage he could not accept, so he strangled her after drugging her.

5. Is Russia out: There is expected to be a call to ban the entire Russian delegation from the Olympic Games in Rio de Janeiro after widespread reports of state-sponsored doping of Russian athletes. The request from athletes' associations is expected as early as Monday.

And one more

CNN anchor Don Lemon and Milwaukee County Sheriff David Clarke had a heated on-air exchange Sunday night over the targeting of police officers in America.  "I've been watching this for two years. I've predicted this," Clarke said. "This anti-police rhetoric sweeping the country has turned out some hateful things inside of people that are now playing themselves out on the American police officer." Clarke blamed the Black Lives Matter movement for "anti-cop sentiment," and suggested that Lemon didn't help calm the rhetoric. He also challenged Lemon's reporting and said that President Obama lied when he spoke about police shootings in Dallas and the ones in Baton Rouge.

In case you missed it

The ultimate poison ivy primer. This is a 2-year-old video that has gone viral with more than 1 million views in recent weeks.

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