A man already on pretrial release for a felony gun case is now accused of luring another man into an “ambush” and “execution” killing on the Far South Side.
John Perteet, 38, has been charged with first-degree murder in the July 11, 2025, slaying of 43-year-old Prince Johnson. Prosecutors say Perteet used the very phone number tied to his electronic monitoring agreement to set up the deadly meeting.
Perteet had been wearing an ankle monitor since April 2024, when Judge Ruth Gudino released the convicted felon after he was allegedly arrested with a stolen Infiniti Q50 allegedly containing an AR-15 rifle, a pistol, narcotics, and 500 grams of cannabis. In that case, prosecutors initially said he fled suburban police at over 100 mph, ran through red lights and stop signs, and bailed from the car after a chase.
Despite multiple reports of dozens of curfew violations that summer, judges repeatedly sent him back home on monitoring instead of keeping him locked up, according to court records.
The Ambush
Prosecutors said that on the night of July 11, Perteet texted Johnson and arranged to meet in the 13200 block of South Langley Avenue at Altgeld Gardens housing complex. Around 9:30 p.m., surveillance video allegedly showed Perteet and an accomplice arriving in a BMW registered to his girlfriend. The footage showed Perteet pacing in the lot while an accomplice, masked and dressed in black, crouched behind a minivan with a rifle, prosecutors said in a detention filing.
At 9:39 p.m., Johnson arrived in a car equipped with cameras. Video from that car clearly captured Perteet’s face and clothing when he climbed into the passenger seat, the filing said. The two men eventually got out of the vehicle and walked away together toward the hidden accomplice, who rose from hiding with his weapon, prosecutors said.
Perteet drew a handgun and opened fire, but the video did not show any muzzle flashes from the second man’s rifle, the petition stated. After being shot, Johnson dropped a bag holding about two pounds of cannabis and tried to run, but both gunmen chased him into a courtyard. The accomplice ditched the rifle, then pulled a handgun and fired multiple shots after Johnson fell. Johnson died from multiple gunshot wounds to the head and body.
The Evidence
Prosecutors said GPS data from Perteet’s ankle monitor tracked him to, from, and during the murder. A police officer familiar with Perteet from his 2024 arrest identified him from the video, which prosecutors described as crystal-clear evidence.
After his arrest, Perteet allegedly made a call in which he directed his girlfriend to hide or destroy “potential evidence” in their home, the petition said, adding that the conversation was recorded.
Judge James Murphy III ordered Perteet detained, calling the killing a “planned ambush” and “execution.”
Second Chances
Court records show Perteet skirted the rules of pretrial release many times.
On June 25, 2024, the court’s pretrial services office filed a report showing Perteet had about 30 curfew violations. A month later, another 16 violations were logged. Judge Patrick Coughlin gave Perteet a brief 15-day jail stint, then put him back on monitoring with curfew restrictions, according to court records.
Perteet is the 12th person accused of killing or trying to kill someone in Chicago this year while on pretrial release. Those cases have involved 25 victims, five of whom died.
The “not horrible” series
This report continues our coverage of individuals accused of killing, shooting, or trying to kill or shoot others on pretrial release for a felony allegation. CWBChicago began our series of reports in November 2019 after Cook County Chief Judge Timothy Evans publicly stated, “We haven’t had any horrible incidents occur” under the court’s bond reform initiative.
The actual number of murders and shootings committed by people awaiting trial for felony allegations is undoubtedly much higher than the numbers seen here. Since 2017, CPD has brought charges in less than 5% of non-fatal shootings and 33% of murders, according to the city’s data. You can see all of the “not horrible” stories here.
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