A man in his 40s who barricaded himself at a Joliet residence has died from a self-inflicted gunshot wound after a police standoff that lasted more than eight hours.

Will County Coroner Laurie Summers’ Office has not released the man’s identity. Will County Sheriff Mike Kelley’s Office has deferred to Summers to release the man’s identity even though they released information about how he was wanted on felony drug charges.

On Tuesday evening, Summers said her office will not release the man’s name until after the autopsy on Wednesday.

“That is our protocol and I’m sticking to it,” Summers said.

She would not say whether the man who died is Derrick Smith. Chicago attorney Ian Barney told Shaw Local that Smith is the man who died.

Barney said he is representing Smith’s brother and cousin.

“I intend to help them gather the facts to ensure we know what happened to Derrick,” Barney said.

He said Smith’s family has “very little information at this time and just wants an objective investigation so they can learn the true facts.”

Barney represented the family of Gregory Walker, 65, of Crest Hill, who took hostages while armed with a revolver in 2022 at a Romeoville bank. Walker was fatally shot by Will County Sheriff’s Lt. John Allen after he freed the hostages and surrendered to police.

The federal case from Walker’s family led to a $2.75 million settlement against the county.

For about eight hours on Monday, Will County Sheriff’s SWAT team was engaged in negotiations with a man who was armed and had barricaded himself in a residence on Romayne Avenue in Joliet.

The man was not the owner of the residence, which is less than half a mile away from the post office on McDonough Street.

The SWAT team spent hours telling the man through a speaker to leave the residence with nothing in his hands. He was assured they would not shoot him.

At one point, police tossed a yellow box at the residence that apparently contained a phone so they could better communicate with the man.

About 8 p.m., the SWAT team began efforts to breach the residence. Sounds of explosions and shots could be heard throughout the neighborhood.

Shortly after 9 p.m., an ambulance arrived on scene.

The man who barricaded himself was found with “an apparent self-inflicted gunshot wound” and he was in critical condition when he was taken to Saint Joseph Medical Center in Joliet, according to the Will County Sheriff’s Office.

Detectives recovered a handgun inside the residence, police said.

The Will-Grundy Major Crimes Task Force will take over the investigation of the incident, police said. The task force is known in Will County for investigating police shootings and in-custody deaths.

In response to multiple questions, sheriff’s office spokeswoman Elizabeth Matthews said the office at this time can’t say more than the man died from a self-inflicted gunshot wound.

Matthews declined to answer questions regarding the officers’ breach of the residence.

“We can’t discuss policing tactics during this ongoing investigation,” Matthews said.

The incident leading to the barricade began about 1 p.m. Monday when officers tried to pull the man over in a traffic stop in connection with multiple felony warrants.

Police said the officers “attempted a vehicle containment technique” on the man that was “unsuccessful” and allowed the man to “break free and crash into a fence.”

That occurred in 200 block of St. Jude Avenue. A preliminary investigation showed that the man “got out of his crashed car, holding a handgun and took off running,” police said.

Officers tracked the man to a Romayne Avenue residence, where he barricaded himself inside, police said.