Chad Greenenwald, 17, of Fox Lake, (left) died on October 4, 2023, after he was shot in Round Lake and later found unresponsive at the Citgo gas station in Round Lake Beach. Demarion R. Gibert, 20, of Volo, (middle) and Damone Gibert, 17, of Volo, (right) have been arrested and charged in the murder. | Provided Photos

The FBI and detectives arrested two brothers on Wednesday and charged them with murder in connection with the fatal shooting and robbery of a 17-year-old boy in Round Lake.

Demarion R. Gibert, 20, of Volo, and Damone Gibert, 17, of Volo, were both charged with first-degree murder and armed robbery.

The two suspects were arrested Wednesday morning after law enforcement converged on a residence in the 800 block of Richard Brown Boulevard in Volo.

Members of the FBI’s Violent Crime and Fugitive Task Force along with the Round Lake Police Department made the arrests.

Police converge on a home in the 800 block of Richard Brown Boulevard in Volo on Wednesday morning and arrest two suspects wanted for first-degree murder that occurred in Round Lake in October 2023. | Photo Submitted to Lake and McHenry County Scanner

Round Lake Police Chief Dave Prus said Demarion Gibert and Damone Gibert are both brothers. The 17-year-old is being charged as an adult.

The two previously resided in Round Lake Beach and recently moved to the home on Richard Brown Boulevard in Volo where they were arrested, Prus said.

The charges against the two stem from a shooting and armed robbery that occurred on the evening of October 4, 2023.

Lake County Major Crime Task Force Spokesman Christopher Covelli said at the time that officers in the Round Lake area began a search around 8:20 p.m. that evening after receiving a 911 call from a cellphone.

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A Round Lake Beach police officer located a black Mercedes at the Citgo gas station on the corner of Cedar Lake Road and Rollins Road in Round Lake Beach.

Officers found a teenage boy, who later died, critically wounded at the Citgo gas station on the corner of Cedar Lake Road and Rollins Road in Round Lake Beach following a shooting that occurred at Midland Drive and Sycamore Drive in Round Lake on October 4, 2023. | Photo: Craig / Captured News

Officers saw the Mercedes had been damaged by gunfire and found Chad Greenenwald, 17, of Fox Lake, with a gunshot wound, Covelli said.

The boy was not breathing and officers began performing CPR after calling for the fire department.

Greenenwald was transported to Advocate Condell Medical Center in Libertyville where he was pronounced dead.

An autopsy showed Greenenwald died as a result of a gunshot wound to the chest, according to Lake County Coroner Jennifer Banek.

Covelli said a further investigation showed Greenenwald was a passenger in the vehicle that sustained the gunshot damage.

Officers found a teenage boy, who later died, critically wounded at the Citgo gas station on the corner of Cedar Lake Road and Rollins Road in Round Lake Beach following a shooting that occurred at Midland Drive and Sycamore Drive in Round Lake on October 4, 2023. | Photo: Craig / Captured News

It was determined the shooting occurred in the area of Midland Drive and Sycamore Drive in Round Lake.

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The driver of the Mercedes, along with Greenenwald and a third occupant, were in the area to meet someone, Covelli said.

Prus said multiple individuals, including the Gibert brothers, approached the group in the parked Mercedes. Prus said indications pointed to the meetup being drug-related.

Multiple shots were fired at the car and Greenenwald was struck by the gunfire.

The suspects stole personal property from the victims and fled the scene, Prus said.

Officers found a teenage boy, who later died, critically wounded at the Citgo gas station on the corner of Cedar Lake Road and Rollins Road in Round Lake Beach following a shooting that occurred at Midland Drive and Sycamore Drive in Round Lake on October 4, 2023. | Photo: Craig / Captured News

The driver of the Mercedes drove to the Round Lake Beach gas station where officers located the vehicle and Greenenwald, Covelli said.

The Round Lake Police Department and Lake County Major Crime Task Force began the more than one-year investigation into the homicide.

The Lake County State’s Attorney’s Office, Illinois State Police, Skokie Police Department, FBI and Round Lake Park Police Department assisted.

“The thoroughness and dedication of the Round Lake Detectives, including numerous interviews, legal processes, and forensic evidence, led to the development of two suspects,” Prus said Wednesday.

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Greenenwald’s aunt Toni Barycki said at the time of the boy’s death that the family’s hearts “literally feel broken.”

“You have been through so much, and your life cut way too short. From the tiny baby who couldn’t wait to be born and came to his own baby shower, to the amazing young man who spent his last summer working so hard,” Barycki said.

Officers found a teenage boy, who later died, critically wounded at the Citgo gas station on the corner of Cedar Lake Road and Rollins Road in Round Lake Beach following a shooting that occurred at Midland Drive and Sycamore Drive in Round Lake on October 4, 2023. | Photo: Craig / Captured News

“You will always be the big hearted young man who loves deeply, hugged me every time I saw you, and didn’t have enough time to do all the amazing things I know you would have done,” Barycki said.

“The tragic and sudden loss of Chad has left us with no words to express our sorrow,” she added.

Arrest warrants charging the Gibert brothers were obtained before the two were taken into custody on Wednesday.

Demarion Gibert and Damone Gibert are both set to make initial court appearances on Wednesday afternoon and Thursday morning.