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The original item was published from 8/5/2021 9:31:29 AM to 9/1/2021 12:00:02 AM.

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Sheriff's Office News

Posted on: August 5, 2021

[ARCHIVED] Sheriff John D. Idleburg Announces Sheriff's Office and ATF Dismantle Street Gang, Arrest 10

Sheriff John D. Idleburg announces on August 4, 2021, the Lake County Sheriff’s Office Special Investigations Group (SIG), a High Intensity Drug Trafficking Area (HIDTA) funded task force, in conjunction with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) – Chicago Field Division, a SIG partner agency, successfully took numerous street gang members into custody, thereby dismantling a street gang operation.  

The long-term investigation into the street gang known as ‘Satan Disciple’ began over a year ago.  Members of this street gang were involved in both drug trafficking and violent acts throughout Lake County.  Throughout the investigation, undercover members of SIG seized 15 firearms and firearm ammunition.  

During the investigation SIG detectives were able to successfully stop at least two planned drive-by shootings that members of the street gang ordered to take place in Lake County.  In at least one of the ordered drive-by shootings, there were numerous people home at the intended residence, which could have resulted in multiple casualties.  

In addition to the firearms, SIG detectives seized over 4,000 grams of cocaine and over 170 grams of methamphetamine.

Arrested on August 4th were:


Quentin L. Newbrey, 31, of the 4000 block of Ridge Road, Zion

Charged in Lake County: Armed Habitual Criminal, two counts of Aggravated Unlawful Possession of a Weapon, Unlawful Sale of a Firearm


Carl P. Marder-Grant, 27, of the 500 block of Chestnut Street, Waukegan

Charged in Lake County: Unlawful Sale of a Firearm, two counts of Aggravated Unlawful Use of a Weapon


Darryl Benjamin, 38, of the 1000 block of Lakehurst Drive, Waukegan

Charged in Lake County: two counts of Unlawful Possession of a Controlled Substance with Intent to Deliver, two counts of Unlawful Possession of a Controlled Substance


Gilberto Alvarado-Cuen, 29, of the 3400 block of Ted Avenue, Park City

Charged in Lake County: two counts of Unlawful Possession of a Controlled Substance with Intent to Deliver, two counts of Unlawful Possession of a Controlled Substance


Anthony Brown, 39, of the 100 block of North Milwaukee Avenue, Lake Villa

WANTED in Lake County for:  five counts of Unlawful Possession of a Controlled Substance with Intent to Deliver, fire counts of Unlawful Possession of a Controlled Substance


Eric W. Gragen, 39, of the 8000 block of 48th Avenue, Kenosha, Wisconsin

WANTED in Kenosha County for: three counts of Straw Purchasing of a Firearm


Four additional individuals were apprehended on federal arrests warrants in connection with this long-term investigation and will be (or have been) transferred to Federal Bureau of Prison’s Metropolitan Correctional Center for their federal detention hearings.

Sheriff John D. Idleburg said, “This is precisely the reason we have refocused the efforts of our Special Investigations Group toward investigating and arresting violent drug traffickers.  The tireless work of our detectives and partner agencies undoubtedly stopped instances of cold-blooded murder from taking place in our county.  I could not be prouder of the hard work of our detectives and I am incredibly thankful for the terrific partnerships we have with our local and federal partners.  It is this type of collaboration that will continue dismantling the ability of gangs being able to operate in Lake County and keep our community safe.”

The Lake County Sheriff’s Special Investigations Group is composed of detectives, agents, and staff from:

Bureau of Alcohol, Tobacco, Firearms and Explosives 

Drug Enforcement Administration

Federal Bureau of Investigation

Homeland Security

Lake County Forest Preserve Police

Lake County Sheriff’s Office

Lake County State’s Attorney’s Office

North Chicago Police Department

Park City Police Department

Round Lake Beach Police Department

Wauconda Police Department

Waukegan Police Department

Zion Police Department 

This was a High Intensity Drug Trafficking Area (HIDTA) Initiative and funded by the Organized Crime Drug Enforcement Task Forces (OCDETF). OCDETF identifies, disrupts, and dismantles the highest-level drug traffickers, money launderers, gangs, and transnational criminal organizations that threaten the United States by using a prosecutor-led, intelligence-driven, multi-agency approach that leverages the strengths of federal, state, and local law enforcement agencies against criminal networks. 

All defendants are presumed innocent unless proven guilty in a court of law.

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