These are the headlines you Need2Know:
* **Toronto Shooter Had Tumultuous Mental History:**
The parents of slain shooter Faisal Hussain went public on his history of mental illness, but officials have not yet identified his motives. The 29-year-old shot and killed two and wounded at least a dozen on Sunday. Read the details [here](https://www.cnn.com/2018/07/24/americas/toronto-shooting-investigation/index.html).
* **Umbrellas Up, Northeasterners!:**
A flash-flood warning is in effect after heavy rainfall has flooded several Pennsylvanian towns. In Scranton, certain parts of Hershey park are submerged in water. See the map [here](https://twitter.com/NWS/status/1021536276095426560).
* **Twitter War Forges Ahead:**
Following President Trump’s all-caps [Twitter](https://twitter.com/realDonaldTrump/status/1021234525626609666) threat to Iranian President Hassan Rouhani, the Iranian Foreign Minister Mohammad Javad Zarif fired back on Monday, warning the U.S. to, “BE CAUTIOUS!” Read the full subtweet from Zarif [here](https://twitter.com/JZarif/status/1021471196242735104).
* **North Korea Tunes it Down:**
Just over a month after Trump met with North Korean leader Kim Jong-un in Singapore to discuss denuclearization, the country is dismantling several ballistic missile launch sites. Stay with the story [here](https://www.theguardian.com/world/2018/jul/24/north-korea-satellite-images-show-dismantling-of-missile-test-facilities-report).
Cheddar's Hena Doba with the latest.
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President Joe Biden made his first public comments about his son Hunter Biden's plea deal with federal prosecutors on two misdemeanor tax charges. This follows several critical comments by Republicans, who blasted the agreement as a "sweetheart deal."
A federal judge struck down Arkansas' first-in-the-nation ban on gender-affirming care for children as unconstitutional Tuesday, the first ruling to overturn such a prohibition as a growing number of Republican-led states adopt similar restrictions.
Climate change is on trial in Montana. In a landmark case, 16 young people are suing the state over effects like smoke, heat, and drought. It's just the first in a series of cases intended to pressure lawmakers into taking action on the environment. Here with more is Cheddar News Senior Reporter Chloe Aiello.
President Joe Biden’s son Hunter will plead guilty to federal tax offenses and avoid prosecution on a separate gun charge in a deal with the Justice Department that likely spares him time behind bars.
A White House official said First lady Jill Biden is hosting a roundtable conversation on Tuesday that will bring together women who have been denied medical care since the overturning of Roe v. Wade last year.
Former president Donald Trump told Fox News' Bret Baier said on Monday that he did not show classified documents to anyone else after his term.
President Joe Biden will convene a group of technology leaders on Tuesday to debate artificial intelligence.
More than 1 million people have been dropped from Medicaid in the past couple of months as some states moved swiftly to halt healthcare coverage following the end of the coronavirus pandemic.
Thousands of Iraqis, many of whom risked their lives by working closely with Americans during the war and its aftermath, are trying to enter the U.S.
U.S. Secretary of State Antony Blinken met on Monday with Chinese President Xi Jinping and said they agreed to “stabilize” badly deteriorated U.S.-China ties, but America’s top diplomat left Beijing with his biggest ask rebuffed: better communications between their militaries.
