Second Arrest Made in Deadly Boom Island Shooting

Jul 10

A man already on federal parole for possessing a machine gun has now been charged with murder and attempted murder for his alleged role in a Minneapolis shooting last June.

Investigators say he initially left the scene, but returned to Boom Island Park and opened fire into a crowd, killing 23-year-old Stageina Katraya Shapryia Whiting and injuring five others during a gang-related shooting on June 1.

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Marquez Demar Hill-Turnipseed, 23, is charged with two counts of second-degree murder—including one involving a drive-by shooting—and three counts of attempted second-degree murder in connection to the mass shooting, which police described as a chaotic and targeted act of violence. He was taken into custody in Chicago on a separate warrant for a shooting in Ramsey County and remains jailed on $2 million bail.

According to the complaint filed in Hennepin County, Hill-Turnipseed admitted during an interview that he was the passenger firing from a black Dodge Challenger as it circled Boom Island Park, shooting into the crowd. He told investigators he had left the area after a friend was shot but returned and emptied two clips from a .40 caliber handgun because he was angry.

PREVIOUSLY: Woman Dead, 6 Hurt in Chaotic Minneapolis Park Shooting

The fatal shot struck Whiting as she rode in the passenger seat of her sister’s car, attempting to leave the park following the initial round of gunfire. Surveillance footage captured the Challenger driving past their vehicle near the exit, with someone firing into the car. Whiting later died at the hospital.

One of the surviving victims remains in critical condition and is fully paralyzed.

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Investigators recovered about 130 shell casings at the scene and say that at least nine guns had been fired. A distinct grouping of .40 caliber casings was found near the location where Whiting was shot. A live round and matching casing were later recovered from the Challenger.

*The scene of a June 1, 2025 shooting at Boom Island Park where six people were shot.* ***MN CRIME PHOTO***

The Challenger was registered to the girlfriend of Zyere Jakye Porter, 23, who was charged last week in connection to the shooting. Porter is accused of aiding Hill-Turnipseed by driving the Challenger during the attack. When officers found the vehicle at Porter’s residence in Spring Lake Park on June 3, a black vinyl wrap had been removed and had no license plates. Another nearby vehicle contained firearms, ammunition and a heat gun used to remove vehicle wraps. Porter’s fingerprints were found under the wrapping on the Challenger.

PREVIOUSLY: Man Charged with Murder After Boom Island Mass Shooting

Through witness interviews and cellphone records, investigators confirmed that Hill-Turnipseed and Porter had returned to the Spring Lake Park address after the shooting. Authorities also determined that both men had gone to Boom Island at the request of Low End gang members to help confront rivals.

At the time of the shooting, Hill-Turnipseed was on federal parole from a 2023 machine gun case and on probation for another machine gun conviction in a 2021 Minneapolis case.

If convicted, he faces up to 40 years in prison for each murder count.

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