Accomplice charges: Gunman who shot 7 in Minneapolis circled victims in car and opened fire

One person was killed and six others wounded. Three of them were hospitalized in critical condition but were expected to survive.

The Minnesota Star Tribune
August 29, 2025 at 11:00PM
Minneapolis Police Chief Brian O’Hara, left, walks with Sgt. Garrett Parten before a news briefing Tuesday in Minneapolis. (Jeff Wheeler/The Minnesota Star Tribune)

The gunman who shot seven people this week, killing one, circled his victims in a car, got out and sprayed the sidewalk with deadly gunfire that also wounded several others, according to charges filed Friday against two accomplices.

Tiffany Lynn Marie Martindale, 30, listed as homeless, and Ryan Timothy Quinn, 33, of Bloomington were each charged in Hennepin County District Court with aiding an offender to avoid arrest in connection with the shooting midday Tuesday near E. Lake Street that killed Gregory Doyle Sweeten, 35, of Minneapolis.

Tuesday’s shooting unfolded about 1:30 p.m. on a sidewalk in the 2900 block of Clinton Avenue S. across the street from Cristo Rey Jesuit High School. In addition to Sweeten’s killing, five men and one woman were also wounded, Police Chief Brian O’Hara said. Three were hospitalized in critical condition, but all are expected to survive, the chief said.

O’Hara said at least one person in the group was targeted.

As for the shooter, the criminal complaints identified him only as “Bino.” The County Attorney’s Office said late Friday afternoon that it so far has no case brought by police for consideration of charges stemming from the killing. Also, police have announced no additional arrests.

Martindale and Quinn both remain jailed in lieu of $250,000 bail ahead of court appearances Tuesday. Court records do not list an attorney for either of them.

This shooting was followed one day later by another mass shooting in the city at Annunciation Church and School, where gunfire from 23-year-old Robin Westman killed two students and wounded 19 others attending Mass. Westman then died by suicide.

O’Hara described the gun used in the Tuesday shooting as a “weapon of war” that inflicted “unspeakable” injuries on the victims.

According to the charges, which revealed no motive for the shooting:

Officers responded to the report of a shooting and saw Sweeten dead and the others “with gunshot wounds of varying severity,” the charges read.

A witness showed vehicle dashcam video to police that captured a gray car believed to be connected to the suspects and registered to Quinn at an address in Inver Grove Heights.

Officers staked out the home and saw the car arrive shortly after the shooting, with Quinn driving and Martindale as his passenger.

Quinn told the officers he and Martindale picked up Bino and drove him around the Twin Cities area, then Bino directed him to drive to the 2900 block of Clinton Avenue. They circled the block once and while making a second loop, Bino told Quinn to stop the car.

Bino got out, wearing a mask and holding a rifle, and shot multiple rounds into the crowd on the sidewalk. Bino got back in the car and had Quinn drop him off in north Minneapolis.

Surveillance video backed Quinn’s account.

A law enforcement review of Martindale’s phone revealed numerous calls between her and Bino on the day of the shooting, and him giving her the address of a McDonald’s about two blocks from where the shooting occurred.

Court records in Minnesota show Quinn has two convictions for driving while impaired by drugs or alcohol, and one each for violating an order for protection stemming from domestic abuse, credit card fraud, theft and assault.

Martindale’s criminal history in Minnesota includes one conviction each for obstructing police and drunken driving.

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about the writer

Paul Walsh

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Paul Walsh is a general assignment reporter at the Minnesota Star Tribune. He wants your news tips, especially in and near Minnesota.

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