MILWAUKEE — A former Milwaukee police officer is now a defendant in federal court.
According to a federal criminal complaint, prosecutors say Juwon Madlock “utilized open-source databases and law enforcement databases to find addresses” to help a known gang member track down gang members via text messages.
Court documents show Madlock allegedly admitted to investigators that he provided the gang member with ammunition and offered to sell them guns.
During a search warrant executed at Madlock’s home, law enforcement recovered a handgun with a machine gun conversion device.
Madlock is also accused of providing a picture of an officer who arrested one of the gang member’s accomplices.
Watch: What we know about an arrested Milwaukee police officer:
Madlock was arrested on Wednesday and subsequently resigned from the Milwaukee Police Department.
"I'm glad that this officer who went astray from his oath to serve and protect the people of Milwaukee, I mean he was giving information right, to a gang, essentially in Milwaukee,” said Mayor Cavalier Johnson. “That's not appropriate. It's absolutely not appropriate and I'm glad the officer is no longer on the job."
TMJ4’s Lighthouse team found Madlock was put on Milwaukee County’s Brady list four years ago. It’s a list of 191 current and former officers with alleged credibility concerns due to accusations of past crimes, dishonestly, bias, or other integrity issues.
In 2021, internal police documents show Madlock was suspended and put on the Brady list for an integrity violation after the department determined he and another officer failed to investigate a shooting report from a victim who came to District 7.
The internal affairs report says Madlock, “made untruthful statements to a supervisor regarding why the victim left the district station and returned to the scene.”
Later that year, police records show he was suspended for allegedly failing to investigate after a victim reported domestic violence.
If a Brady list officer is called to testify, that information has to be disclosed to defense attorneys.
“Should he have been able to keep his job after being put on the Brady list?” TMJ4 reporter Ben Jordan asked.
“Look, this is an issue that I'm just being made aware of in terms of the Brady list,” Mayor Johnson said. “I didn't even know about the existence of the list before the recent reporting on this, so this is something I have to do some research on myself, but again, I want to caution and just make sure that we should make sure that we review these on a case-by-case basis."
The FBI and the U.S. Attorney’s Office declined our interview request, saying they cannot comment on a pending criminal case. In a news release, the Milwaukee police chief said he was “extremely disappointed to learn about the misconduct in this case."
If you want to see all of the current and former officers on Milwaukee County’s Brady list, our database in partnership with the Milwaukee Journal Sentinel and Wisconsin Watch can be found below.
See all Duty to Disclose stories as they are posted here.
The Brady list is a compilation of current or former law enforcement officers deemed by the Milwaukee County District Attorney’s Office to have credibility issues. The underlying allegation can range from lying on exams to violent crimes. Just because an officer is on the list does not mean he or she was necessarily convicted or charged with a crime, or found guilty of internal misconduct. According to the office of District Attorney Kent Lovern, some cases may have resulted in an acquittal, been dismissed, or were amended to non-criminal offenses. The office says, "the database is accurate to the best of our knowledge as of February 27, 2025."
About this project
“Duty to Disclose” is a joint investigation by TMJ4, the Milwaukee Journal Sentinel and Wisconsin Watch. The collaboration was prompted by the Milwaukee County District Attorney’s decision in 2024 to release its “Brady List,” a closely-guarded list of law enforcement officers with alleged credibility issues, after pressure from the news organizations.
TMJ4 Lighthouse reporter Ben Jordan, Journal Sentinel investigative reporter Ashley Luthern and Wisconsin Watch investigative reporter Mario Koran spent four months verifying the hundreds of officers on the list, discovering that it is frequently incomplete and inconsistent.
Readers with tips about the Brady List are encouraged to contact reporter Ben Jordan at ben.jordan@tmj4.com.
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