Police investigate a homicide that occurred on the beach at Fort Sheridan Forest Preserve in Lake Forest early Saturday morning. | Photo: Max Weingardt

Illegal gun charges have been filed against one of two men involved in a “violent confrontation” that left a 45-year-old man killed on a beach near Lake Forest Saturday morning.

Nicholas M. Caban, 20, of the 3400 block of Dato Avenue in Highland Park, was charged with one count of unlawful possession of a firearm without a serial number, a Class 3 felony.

The Highland Park Police Department received a call of an unconscious person around 5:10 a.m. Saturday in the 0-100 block of Cliff Road in Highland Park.

Officers arrived and found an adult male deceased near the shoreline of Lake Michigan.

Lake County Major Crime Task Force Spokesman Christopher Covelli said it was determined the location of the incident was Fort Sheridan Forest Preserve in Lake Forest, which is in the jurisdiction of the Lake County Forest Preserve Police.

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Lake County Forest Preserve Police requested the assistance of the Lake County Major Crime Task Force.

Covelli said that the deceased man was 45 years old and lives in the area.

Police investigate a homicide that occurred on the beach at Fort Sheridan Forest Preserve in Lake Forest early Saturday morning. | Photo: Max Weingardt

The man went outside around 1 a.m. Saturday to speak with Caban and an 18-year-old, who were being loud at Fort Sheridan Beach.

Covelli said the 45-year-old man made contact with the group and a violent confrontation ensued.

The 45-year-old died following the confrontation. His body was not discovered until hours later.

Caban and the 18-year-old man both sustained injuries in the incident.

They were transported to a hospital and are both speaking with investigators, Covelli said.

A search warrant was conducted at Caban’s residence in the 3400 block of Dato Avenue in Highland Park on Saturday.

Investigators located a semi-automatic pistol in Caban’s bedroom while conducting the search warrant.

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Police investigate a homicide that occurred on the beach at Fort Sheridan Forest Preserve in Lake Forest early Saturday morning. | Photo: Max Weingardt

The firearm had no identifiable serial numbers.

Covelli said the gun found in Caban’s residence was not used when the 45-year-old man was killed.

Lake County Forest Preserve Police and Lake County Major Crime Task Force investigators continue to investigate the incident.

Covelli said additional charges are possible following further investigation and the results of the 45-year-old man’s autopsy.

The Lake County Coroner’s Office has not released the identity of the 45-year-old man yet.

Caban is scheduled to appear in bond court Monday morning.