Fox News conservative pundit Gianno Caldwell and his family are reeling over the shooting death of his 18-year-old brother Christian Caldwell in Chicago on Friday.

Gianno took to Twitter to announce the tragic news.

“Yesterday was the worst day of my existence. I received a call informing me that my teenage baby brother was murdered on the south side of Chicago. Never could I have imagined my baby brother’s life would be stolen from him,” he wrote, posting a photo of him and Christian after the teen’s high school graduation.

Christian was shot dead and two other people were injured in the city that has been plagued by gun violence consistently over the past five months. Gunfire erupted at Morgan Park on the city’s south side. CBS Chicago reported that police recovered 50 shell casings from the scene and that bullets had pierced the windows of some homes in the neighborhood.

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Chicago has had 971 incidences of gun violence during that time, according to Block Club Chicago. Morgan Park has a “C” rating for crime and safety on Niche.com.

“What I’m looking for right now is details from the police to discover who it was that murdered my brother. [M]y baby brother never had a chance. I would never want to see any street justice or violence against the people who even murdered my little brother. But I do want them brought to justice,” Gianni told the news outlet.

Supporters offered the author their condolences online.

In 2019, Gianni appeared on Fox News to discuss why he changed from left to right.

"The Republican Party is all about freedom." Gianno revealed why he shifted from liberal to conservative.

According to his bio on his website, the south side Chicago native entered politics at age 14 when he “walked into a local aldermen’s office.”

The 35-year-old author also published his first book “TAKEN FOR GRANTED: How Conservatism Can Win Back the Americans That Liberalism Failed.”

The book detailed his childhood in Chicago where he watched drugs destroy his mother and was raised by his grandmother.