What to know now:

 1. Orlando 911 transcripts: Partial transcripts of 911 calls between Orlando nightclub shooter Omar Mateen and  police will be released Monday, according to U.S. Attorney General Loretta Lynch. Mateen called the emergency number three times during the massacre that left 49 dead and more than 50 wounded. He pledged allegiance to the Islamic State in one of the calls, according to Lynch.

2. Actor killed: The actor who played Chekov in the recent "Star Trek" films died Sunday when he was pinned against a brick mailbox pillar by his own car. Anton Yelchin, 27, was leaving his home in Studio City, Calif.,  to go to a rehearsal, authorities say, when he apparently got out of the car for a moment and the vehicle rolled down the driveway and pinned against  the mailbox and a fence. "Star Trek Beyond," the latest film in the new 'Star Trek' series, is set to be released in July.

3. Cavs win: The Cleveland Cavaliers won the NBA Championship Sunday night, coming from a 3-1 deficit to take  the title. It was the first major sports title for  the city of Cleveland  since 1964. The Cavs beat the Golden State warriors 93-89. Cavaliers star LeBron James was named series MVP.

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4. Senate vote: In the wake of the Orlando nightclub shooting, the U.S. Senate is set to vote Monday on four gun-control-related measures. The proposed measures, which grew out of a  Democratic filibuster last week, are aimed at  improving or expanding background checks and making it harder for anyone the government suspects is a terrorists to purchase weapons. None of the measures are expected to pass.

5. ISIS calls for attacks: The National Intelligence Service said Sunday that the Islamic State has collected information on 77 U.S. and NATO air force facilities around the world and is calling on supporters to launch attacks on the facilities. According to the NIS, the terror group has released addresses and Google satellite maps directing supporters to the bases.

And one more

If it seems like today will never end, there's a reason. It's the summer solstice, and it is, actually, the longest day of the year in the Earth's northern hemisphere. What that means is that the sun's rays will reach their northernmost position on Earth today, resulting in nearly 15 hours of daylight. In other words, it's summertime!

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‘Star Trek’ actor killed; Orlando  911 transcripts; Cleveland wins

Orlando 911 transcripts: Partial transcripts of 911 calls between Orlando nightclub shooter Omar Mateen and  police will be released Monday, according to U.S. Attorney General Loretta Lynch. Mateen called the emergency number three times during the massacre that left 49 dead and more than 50 wounded. He pledged allegiance to the Islamic State in one of the calls, according to Lynch.

The actor who played Chekov in the recent "Star Trek" films died Sunday when he was pinned against a brick mailbox pillar by his own car. Anton Yelchin, 27, was leaving his home in Studio City, Calif.,  to go to a rehearsal, authorities say, when he apparently got out of the car for a moment and the vehicle rolled down the driveway and pinned against  the mailbox and a fence. "Star Trek Beyond," the latest film in the new 'Star Trek' series, is set to be released in July.

The Cleveland Cavaliers won the NBA Championship Sunday night, coming from a 3-1 deficit to take  the title. It was the first major sports title for  the city of Cleveland  since 1964. The Cavs beat the Golden State warriors 93-89. Cavaliers star LeBron James was named series MVP.

Senate vote: In the wake of the Orlando nightclub shooting, the U.S. Senate is set to vote Monday on four gun-control-related measures. The proposed measures, which grew out of a  Democratic filibuster last week, are aimed at  improving or expanding background checks and making it harder for anyone the government suspects is a terrorists to purchase weapons. None of the measures are expected to pass.