Eric Markham-Flinn, a 25-year-old Black man, was killed late on the night of June 14, 2025, in Milwaukee in a shooting that prosecutors later described as a targeted attack. Milwaukee police were called to the area of North 35th Street and West Capitol Drive at about 11:10 p.m. Markham-Flinn had suffered numerous gunshot wounds and was found in the roadway. He died at the scene.
Investigators recovered nine spent cartridge casings near where he was found.
Surveillance footage became a central part of the investigation. According to the criminal complaint, Markham-Flinn was driving and had stopped at a red light when a silver Chevrolet Cruze approached from behind. The Chevrolet changed lanes, pulled alongside his vehicle, and gunfire erupted from inside the suspect vehicle. After being struck, Markham-Flinn fell from his vehicle into the roadway. His driverless vehicle continued moving through the intersection before eventually crashing into a concrete wall. The silver Chevrolet fled the area immediately after the shooting.
Detectives began tracing the Chevrolet and discovered that the same or a matching vehicle had surfaced during investigations into other shootings in Milwaukee. Police linked its license plates to an April 30 shooting investigation near 64th Street and Sheridan Avenue, where a person had been shot in the groin and gunfire had struck an apartment building. The Chevrolet had later been towed after being found illegally parked near an apartment building around 74th Street and Medford Avenue. When investigators searched the vehicle in connection with that earlier case, they reportedly found spent cartridge casings and firearm magazines inside.
The Chevrolet also appeared in surveillance footage connected with another location near 46th Street and Hampton Avenue. Investigators said the vehicle had been seen outside a store there on June 9, only days after a shooting in that area left one person dead and three others wounded. Video from the store reportedly showed Terrieyon Willoughby getting out of the driver's side of the Chevrolet, and additional surveillance footage recorded only hours before Markham-Flinn's killing allegedly showed Willoughby driving the same vehicle. Although investigators examined these other incidents while building their case, reporting on the criminal complaint emphasized that Willoughby had not been charged in those additional shootings at that time.
Investigators also developed evidence suggesting that Markham-Flinn and Willoughby knew one another and had an existing dispute. A witness told police that Markham-Flinn had attended a party before the shooting and that Willoughby later chased him in the silver Chevrolet. The witness described the two as having previous conflicts, reportedly possibly involving a woman. That information, together with the surveillance evidence, led investigators to treat the killing as something more deliberate than a random encounter at the intersection.
Police arrested Willoughby on June 24, 2025, at an apartment near 76th Street and Grantosa Drive. The silver Chevrolet connected to the investigation was reportedly parked outside the apartment when officers arrived. Investigators seized an iPhone from Willoughby, and the contents of the phone became another important piece of the prosecution's case. According to the criminal complaint, detectives found a text conversation with a contact identified as “cousin” in which Willoughby allegedly stated that he had killed an “opp.” He also allegedly sent that person an image of a news story concerning Markham-Flinn's homicide and wrote that the victim was dead.
Prosecutors also cited social-media evidence. Investigators said an Instagram post showed Willoughby holding two AR-15-style pistols. According to the complaint, the firearms shown in the post were of the same caliber as the weapon believed to have been used in Markham-Flinn's killing. The publicly reported evidence did not establish that the firearms pictured online had themselves been conclusively identified as the murder weapon, but prosecutors included the post among the circumstances tying Willoughby to the investigation.
The Milwaukee County District Attorney's Office ultimately charged Terrieyon Willoughby, who was 23 at the time, with first-degree reckless homicide in connection with Markham-Flinn's death. He was also charged with misdemeanor bail jumping because he was already facing a concealed-weapon case in Washington County when the homicide occurred. His bond was set at $200,000 on June 29, 2025. A preliminary hearing was scheduled for July 8.
The case presented by prosecutors combined surveillance footage, the Chevrolet's connection to Willoughby, witness information describing an earlier dispute and pursuit, social-media evidence, and messages recovered from Willoughby's phone. Publicly available reporting located for this synopsis documents his arrest and the filing of the reckless-homicide and bail-jumping charges, but does not provide a later verified report establishing a trial verdict or conviction in Markham-Flinn's killing. The homicide therefore resulted in a named suspect being arrested and formally prosecuted, with the criminal allegations against Willoughby remaining allegations unless and until resolved through the court process.
