Aaron Hernandez's brother arrested amid concerns he was planning school shootings

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Four months after being arrested for allegedly throwing a brick at ESPN's headquarters, the brother of Aaron Hernandez was again placed into custody on Wednesday.

D.J. Hernandez, 37, was arrested after police received reports he was plotting school shootings. It's the fourth time that Hernandez has been arrested this year.

Arrest documents from the Bristol Police Department, via WFSB-TV, showed that Hernandez's plans were set for Brown University and the University of Connecticut.

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Aaron Hernandez stood in the court room. Former New England Patriots tight end Aaron Hernandez appeared in Attleboro District Court in Attleboro, Mass. on Wednesday, July 24, 2013.  (Yoon S. Byun/The Boston Globe via Getty Images)

An ex-girlfriend of Hernandez told police that the ex-NFL tight end's brother drove to the campuses to "map the schools out" and even went into several UConn classrooms.

The ex said messages were not sent directly to her, but she heard from another woman that Hernandez was "displaying very erratic behavior," per police. 

The woman who informed the ex of Hernandez's behavior expressed to police that Hernandez is "extremely sick," and his "mental health is continuing to deteriorate."

According to police, Hernandez made threatening posts on social media, including one that read, "Will I kill? Absolutely. I’ve warned my enemies so pay up front."

This Thursday, March 23, 2023, booking photo provided by the Cheshire Police Department shows Dennis Hernandez. (Cheshire Police Department)

"UConn program is going to pay unless I have a package deal and I get my estate and every single