Chicago police spokesman Anthony Guglielmi confirmed Wednesday afternoon that Jussie Smollett is officially a suspect in a criminal investigation for filing a false police report, a Class 4 felony.

Guglielmi said CPD detectives are currently presenting evidence before a Cook County grand jury.

Earlier Gugliemi confirmed prosecutors are speaking with Jussie Smollett’s attorneys as part of their investigation into an alleged attack on the “Empire” actor.

“We are hopeful that we’ll have a chance to ask the questions that we have,” Guglielmi said. “It doesn’t matter what the investigation shows; if you have information that’s helpful to law enforcement, it behooves you to contact authorities and share that information. We have been very diplomatic and have been working with him and his attorneys. We got information, and that what we want to run by him. If the opportunity is not taken [to come in], we’re going to go with other methods to create a culture of accountability.”

Guglielmi also said he could not confirm reports that half a dozen subpoenas seeking Smollett’s cell phone and bank records have been issued.

“The only tool for detectives to be able to corroborate information is a search warrant and a subpoena. I am not at liberty to discuss the specifics, but it is not uncommon for any detective or law enforcement to subpoena records,” Guglielmi said.

Wednesday afternoon two brothers who have become central to the investigation were again seen in the courthouse at 26th and California. They were also present Tuesday, when officials said they spoke with prosecutors but did not present any testimony to the grand jury.

Smollett reported in January that he was attacked by two masked men who hurled racist and homophobic slurs at him, beat him and looped a rope around his neck in Chicago’s Streeterville neighborhood.

On Monday, a law enforcement official briefed on the investigation told ABC News that the brothers told police that Smollett staged the attack on himself because he was upset a threatening letter he received a week prior did not get enough attention.

Detectives are actively investigating the allegation, but have not confirmed it to be true, the official said.

Chicago police said over the weekend that they are “eager” to re-interview Smollett after releasing the two brothers, who were initially identified as persons of interest in the alleged attack. The brothers, who are not considered suspects in the attack, also told police that they were paid to stage the attack, the official said.

“We are not racist. We are not homophobic and we are not anti-Trump. We were born and raised in Chicago and are American citizens,” the brothers said in a statement.

The FBI and the U.S. Postal Inspection Service are investigating the letter, which was sent to the Chicago studio for “Empire” on Jan. 22, and whether Smollett played a role in sending the letter, two federal officials confirmed to ABC News. The letter is currently in the FBI crime lab for analysis, according to one of those sources.

20th Century Fox Television and Fox Entertainment issued a statement Wednesday, saying, “Jussie Smollett continues to be a consummate professional on set and as we have previously stated, he is not being written out of the show.”

Cook County State’s Attorney Kim Foxx has recused herself from the investigation surrounding the alleged attack on Smollett, her office told ABC News on Tuesday.

“Out of an abundance of caution, the decision to recuse herself was made to address potential questions of impartiality based upon familiarity with potential witnesses in the case,” a spokeswoman told ABC News via email.

Foxx clarified her reasons Wednesday. The Cook County State’s Attorney’s Office released a statement that explained: “Shortly after the incident occurred in late January, State’s Attorney Foxx had conversations with a family member of Jussie Smollett about the incident and their concerns, and facilitated a connection to the Chicago Police Department who were investigating the incident. Based on those prior conversations and out of an abundance of caution, last week State’s Attorney Foxx decided to remove herself from the decision making in this matter and delegated it to her First Assistant Joseph Magats, a 28-year veteran prosecutor.”

Paperwork from the Illinois Board of Elections shows Vic Henderson, one of the attorneys representing Smollett, gave $250 to Foxx’s campaign in 2016, but it was not related to the recusal.

Former Cook County State’s Attorney Anita Alvarez criticized Foxx in a Facebook post Wednesday:

“Maybe I should have just recused myself from the difficult cases that came across my desk when I was State’s Attorney. I was under the impression that when the voters elected me and I took my oath of office it meant I had to do my job.”

Alvarez lost the March 2016 Democratic primary to Foxx, after fallout from the Laquan McDonald shooting investigation.

Last week, Smollett sat down with Good Morning America’s Robin Roberts and spoke about the letter.

“Just because on the letter, it had a stick figure hanging from a tree with a gun pointing towards it with the words that said, ‘Smollett, Jussie, you will die, black (expletive),'” Smollett said. “There was no address, but the return address said in big, red, you know, like caps, ‘MAGA.’ Did I make that up too?”

After the police department investigated Smollett’s attack for weeks as a possible hate crime, they discovered that one of the brothers bought the rope to be used in the attack at a local hardware store. The Chicago Sun-Times reports the store was the Crafty Beaver hardware store in Ravenswood.

RELATED: Brothers tell police that Jussie Smollett paid them to stage attack, sources say

Late Saturday, Smollett’s attorneys Todd S. Pugh and Victor P. Henderson released a statement, addressing reports that the actor may have staged the attack.

“As a victim of a hate crime who has cooperated with the police investigation, Jussie Smollett is angered and devastated by recent reports that the perpetrators are individuals he is familiar with. He has now been further victimized by claims attributed to these alleged perpetrators that Jussie played a role in his own attack. Nothing is further from the truth and anyone claiming otherwise is lying.

“One of these purported suspects was Jussie’s personal trainer who he hired to ready him physically for a music video. It is impossible to believe that this person could have played a role in the crime against Jussie or would falsely claim Jussie’s complicity.

“Jussie and his attorneys anticipate being further updated by the Chicago Police Department on the status of the investigation and will continue to cooperate. At the present time, Jussie and his attorneys have no inclination to respond to “unnamed” sources inside of the investigation, but will continue discussions through official channels.”

ABC7 Eyewitness News learned Tuesday that Smollett pleaded no contest to DUI, driving without a license and providing false information to law enforcement in Los Angeles in 2007. He was sentenced to two years of probation and either spent three days in jail or paid a fine of $100 for the three misdemeanor charges, according to the LA city attorney’s office, though it’s unclear which option he chose.

If convicted of filing false police report, which is a felony in Illinois, Smollett could face up to three years in prison.