The 18-year-old arrested in connection with a triple homicide at a West Dallas short-term rental home allegedly called his girlfriend after the incident, admitted to the shooting and told her they were going on the run.
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The 18-year-old arrested in connection with a triple homicide at a West Dallas short-term rental home allegedly called his girlfriend after the shooting, admitted to the shooting and told her they were going on the run, according to an arrest warrant affidavit obtained Wednesday.
Tyson McGriff was arrested on June 5 by the U.S. Marshals‘ North Texas Fugitive Task Force, Dallas police said Monday.
As of Wednesday, he remains in the Dallas County jail with bail set at $1.3 million, according to jail records. He faces two charges of aggravated assault with a deadly weapon along with unlawful restraint, evading arrest and capital murder charges.
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The Dallas County district clerk’s office directed The Dallas Morning News to Glenn Heights and Duncanville police regarding the evading arrest charge and an aggravated assault charge.
Duncanville police said one aggravated assault charge was related to a warrant filed in Dallas County on Nov. 17, 2025, and wasn’t connected with McGriff’s current arrest. Glenn Heights did not immediately respond to request for comment about whether the evading arrest charge is related to a separate offense.
Officers responded to reports of a shooting on May 26 shortly before 12:20 a.m. in the 3700 block of Vilbig Road, where they found three people suffering from gunshot wounds inside an “Airbnb residence,” the affidavit said.
Police identified the three as Jaiden Cooper, 24, Journie Griffin, 19, and Jaiclyn Scott, 20.
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Both Cooper and Griffin were pronounced dead at 12:38 a.m. at the scene. Dallas Fire-Rescue personnel transported Scott to Parkland Memorial Hospital, where she died at 12:57 a.m., according to the affidavit.
A fourth person was transported to the hospital in a private vehicle and was expected to recover, police said.
Throughout the investigation, investigators received multiple tips from people saying they had heard McGriff was the shooter. Officers then interviewed three witnesses.
One witness observed the shooting; the second witness observed multiple individuals with guns drawn prior to the shooting and tried to pull the group outside to “calm them down.” Before the individuals went back inside, they said they had a previous conflict with Scott, according to the second witness.
Detectives provided the two witnesses with six photo lineups where they positively identified McGriff as one of the shooters, the affidavit said.
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A third witness told officers they heard McGriff call his girlfriend and tell her he had “just killed Draco,” a known nickname for Scott, and shot her friends, according to the affidavit. McGriff then told his girlfriend he got rid of the guns and to pack a bag because they were “going on the run,” the witness told police.
Using call data records found on McGriff’s phone, investigators were able to place him at the location of the shooting when it happened. They also found a call from May 16 where McGriff talks about changing the trigger on his Glock 23, a firearm consistent with the 40-caliber casings found at the scene.
No further details about the investigations were immediately available, and no other arrests had been made as of Wednesday evening.