An Oak Lawn man is facing a first-degree murder charge more than four months after police say he fatally stabbed a man he knew during a fight inside a Brainerd home. Mashaun Burton, 29, was arrested Monday in the 4000 block of South 91st Place in Oak Lawn, months after investigators identified him as the man accused of killing 30-year-old Andrell Brown on April 5.
According to FOX 32 Chicago, Chicago police responded to a report of a person stabbed in the 9200 block of South Green Street in Brainerd on April 5. Officers found that Burton and Brown had fought inside a home, and police say Burton pulled out a knife and attacked Brown with it. Brown was taken to Christ Hospital, where he died about 25 minutes after arriving. Police recovered a knife at the scene, and Burton allegedly fled in a white sedan after the attack, per the same report.
Cook County Medical Examiner's Office records confirmed Brown's age and identity, according to CBS News Chicago, which noted that initial police reports had identified the victim as a 39-year-old man before the medical examiner corrected the record to show Brown was 30. Police have not said what led to the fight that ended in the stabbing, leaving the circumstances of the confrontation unresolved.
Trauma Center Sits at Regional Crossroads
Brown was taken to Advocate Christ Medical Center in Oak Lawn, which operates one of the four busiest Level I trauma centers in Illinois and serves as a major emergency hub along Chicago's southwest border, according to background compiled by UChicago Medicine. The facility routinely receives severe trauma cases from both the city's South Side and surrounding suburban communities.
The stabbing occurred in Brainerd, a residential sub-neighborhood within Chicago's Washington Heights community area situated along the Blue Island Ridge, as described by South Side Weekly. The location falls within the Chicago Police Department's 22nd District, which covers Beverly, Brainerd, Morgan Park, and Washington Heights. Homicide investigations in that stretch of the South Side are handled by CPD Area 2 Violent Crimes detectives, based out of the Area 2 Calumet facility.
Four-Month Investigation Ends in Arrest
The gap between the April stabbing and Monday's arrest reflects the time Area 2 detectives spent building a case sufficient to secure an arrest warrant against Burton. Records show Burton was previously arrested in 2019, at age 22, on an allegation of criminal damage to property valued at less than $500. It remains unclear what specific evidence gathered during the four-month investigation ultimately tied him to Brown's killing, and whether any claim of self-defense was raised regarding the fight inside the home.
Burton was charged with one felony count of first-degree murder and is due in Cook County court Thursday for a detention hearing. Under the Illinois Pretrial Fairness Act, part of the SAFE-T Act that eliminated cash bail statewide in September 2023, prosecutors must petition the court to hold first-degree murder defendants without release pending trial by showing specific dangerousness or flight risk, rather than setting a financial bond, according to reporting compiled by NBC Chicago. The outcome of Thursday's hearing had not been reported as of Thursday morning.
What a Conviction Would Mean
If convicted, Burton would face a mandatory prison term under Illinois law, which sets first-degree murder sentences at 20 to 60 years under 720 ILCS 5/9-1, according to legal guidance published by Stavros Law Offices. The state's truth-in-sentencing rules require anyone convicted of first-degree murder to serve the full imposed sentence without eligibility for good-time credit, since the offense is treated as a non-probationable felony carrying a mandatory minimum term.
The case lands amid a mixed picture for Chicago violent crime statistics this year. The city recorded 416 homicides in 2025, its lowest annual total in 60 years, with CPD detectives closing 71% of homicide cases that year. Through the first four months of 2026, the Bureau of Detectives had cleared 101 homicides for a 78% clearance rate, though the first six months of 2026 saw 210 homicides citywide, a roughly 6% increase over the same period in 2025.
