A man accused in the September 2017 execution-style killing of Demarcus "Peanut" Chew will stand trial for two charges instead of one.

Assistant Des Moines County Attorney Justin Stonerook on Monday filed a motion on the behalf of Todd Chelf, senior assistant county attorney, to charge Antoine Calvin Spann, 28, with conspiracy to commit a forcible felony, a class C felony, in addition to first-degree murder.

Spann was formally charged with first-degree murder Oct. 16 in Des Moines County District Court. He had been apprehended by Chicago police on the Des Moines County warrant in August.

Spann is accused of killing Chew Sept. 10, 2017, behind 1021 N. Fifth St., Chew's mother's home at the time.

According to court documents, Spann and Chew were at the Expose bar in Gulfport shortly before Chew’s death.

Surveillance footage taken outside of the bar shows Spann and a man identified as Caesar Davison with a group of people who appear to be watching Chew’s movements. Video also shows Spann and Davison get into a Jeep Grand Cherokee and leave the bar parking lot directly after Chew’s departure.

Commercial and private surveillance videos show the Jeep following Chew’s car to North Fifth Street, as well as speeding away from the scene with its lights off, running several stop signs along the way.

Days later, Davison would post a SnapChat video to his account showing himself and Spann sitting in a vehicle, Davison thumbing through $100 bills estimated to total at least $20,000 and Spann sitting in the backseat. A man is heard saying “RIP.”

Also filed Monday was a list of 15 persons to be deposed prior to Spann's trial. On the list is Chew's mother, Casandra Taylor, and Tyreon Woodard, who was arrested in September after he was found to be in possession of firearms and drugs following a shooting that took place outside a residence on South Ninth Street in September.

Chew's death is believed by his family members to be the result of gang violence and an escalating feud between the Chew family and A.J. Smith, who was found shot to death March 4 in the Golden Gate neighborhood of Chicago.

Evidence discovered throughout the course of the investigation shows Spann made a brief phone call to Smith minutes after Chew's death the morning of Sept. 10. During an interview before his death, Smith told detectives he received a phone call informing him of the shooting shortly after Chew was killed. He recorded a video of himself at the time to show that he was in Keithsburg, Illinois.

Smith’s attorney, Scott Schroeder, who Spann has retained as his defense attorney, provided detectives with a video he claimed was the one Smith described.

Surveillance video from Casey’s General Store in Keithsburg shows Spann there at 8:21 a.m. that morning. Keithsburg is about 30 miles north of Burlington.

Spann's trial is set to begin at 9 a.m. Jan. 8 at the Des Moines County Courthouse.

Davison was questioned by investigators May 30, but denied any knowledge or involvement in Chew’s murder. He subsequently was taken into custody by the Illinois Department of Corrections for a parole violation.