An arrest warrant has been issued for Tymeir Henderson, 27, who killed 28-year-old Dyon Thompson and injured 19-year-old Quadir Miller outside of a Chain Street home in Norristown in February, Montgomery County District Attorney Kevin R. Steele said.
Thompson showed up at the house to speak with Niearah Avery, the mother of his 7-year-old daughter, just before the shooting, police said. Avery is currently eight months pregnant with a baby boy by Henderson, police said.
Miller told detectives that he waited in the car while his brother went to the door, where he could see him talking with Avery, Henderson and one of Avery's female friends.
As Henderson began walking back toward the car, witnesses said multiple shots were fired — killing Thompson and striking Miller as he tried getting out of the parked car. Henderson fled from the scene on foo, police said.
Miller — who had been shot multiple times in the back — was found alongside Thompson in an alley behind the home around 4 p.m. on Feb. 27, Steele said alongside Norristown Police Chief Derrick Wood.
Both men were taken to Paoli Hospital, where Thompson was pronounced dead.
In processing the crime scene, detectives recovered eight 9mm fired Luger-brand cartridge casings in the backyard. Further investigation found that Avery legally owns a 9mm Taurus handgun, which Henderson has “handled” in the past. Avery told detectives that she keeps the gun in her bedroom, but it was not recovered when detectives executed a search warrant.
An autopsy on Thompson was performed by Dr. Erica Williams of the Chester County Coroner’s Office, who determined that the cause of death was a multiple gunshot wounds and the manner of death was homicide.
A GoFundMe set for Thompson's funeral had raised more than $1,500 as of Friday, March 4.
"Dyon Samuel Marquis Thompson was full of life and unapologetically himself who lived life on his terms, with a smile you could see from a mile away," the page reads.
"Unfortunately his life was stolen from him. Dyon’s death was tragic and unexpected and we are asking for donations for his final arrangements and for his daughter Aniyah."
Henderson is considered armed and dangerous as the firearm was not recovered at the scene. He is Black, stands 5-feet, 6-inches tall, and weighs approximately 150 pounds. If Henderson is spotted, call 911 immediately.
For tips about Henderson’s whereabouts, the public is asked to call Norristown Police at 610-270-0977 or the Montgomery County Detectives’ Tip Line at 610-278-DOIT (3638). Anonymous text tips can be submitted using MontcoCrimeTips on the STOPit! app. The STOPit! app can be downloaded for free from the App Store for iPhones or Google Play for Androids, then use code MONTCOPA to get the Montgomery County version of the app.
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