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Manslaughter conviction of ex-Oklahoma officer overturned

March 18, 2021 GMT
This Dec. 11, 2019 photo provided by the Oklahoma State Department of Corrections shows Shannon Kepler.  The Oklahoma Court of Criminal Appeals has overturned the manslaughter conviction of the former Oklahoma police officer's based on a U.S. Supreme Court ruling that much of eastern Oklahoma remains an American Indian reservation. The court on Thursday, March 18, 2021, granted the appeal of Kepler. He's a former police officer and member of the Creek Nation who was sentenced to 15-years in prison for the 2014 killing of his daughter’s boyfriend in Tulsa on land within the historic reservation of the Muscogee (Creek) Nation. (Oklahoma State Department of Corrections via AP)
This Dec. 11, 2019 photo provided by the Oklahoma State Department of Corrections shows Shannon Kepler.  The Oklahoma Court of Criminal Appeals has overturned the manslaughter conviction of the former Oklahoma police officer's based on a U.S. Supreme Court ruling that much of eastern Oklahoma remains an American Indian reservation. The court on Thursday, March 18, 2021, granted the appeal of Kepler. He's a former police officer and member of the Creek Nation who was sentenced to 15-years in prison for the 2014 killing of his daughter’s boyfriend in Tulsa on land within the historic reservation of the Muscogee (Creek) Nation. (Oklahoma State Department of Corrections via AP)
This Dec. 11, 2019 photo provided by the Oklahoma State Department of Corrections shows Shannon Kepler.  The Oklahoma Court of Criminal Appeals has overturned the manslaughter conviction of the former Oklahoma police officer's based on a U.S. Supreme Court ruling that much of eastern Oklahoma remains an American Indian reservation. The court on Thursday, March 18, 2021, granted the appeal of Kepler. He's a former police officer and member of the Creek Nation who was sentenced to 15-years in prison for the 2014 killing of his daughter’s boyfriend in Tulsa on land within the historic reservation of the Muscogee (Creek) Nation. (Oklahoma State Department of Corrections via AP)
This Dec. 11, 2019 photo provided by the Oklahoma State Department of Corrections shows Shannon Kepler. The Oklahoma Court of Criminal Appeals has overturned the manslaughter conviction of the former Oklahoma police officer's based on a U.S. Supreme Court ruling that much of eastern Oklahoma remains an American Indian reservation. The court on Thursday, March 18, 2021, granted the appeal of Kepler. He's a former police officer and member of the Creek Nation who was sentenced to 15-years in prison for the 2014 killing of his daughter’s boyfriend in Tulsa on land within the historic reservation of the Muscogee (Creek) Nation. (Oklahoma State Department of Corrections via AP)
This Dec. 11, 2019 photo provided by the Oklahoma State Department of Corrections shows Shannon Kepler. The Oklahoma Court of Criminal Appeals has overturned the manslaughter conviction of the former Oklahoma police officer's based on a U.S. Supreme Court ruling that much of eastern Oklahoma remains an American Indian reservation. The court on Thursday, March 18, 2021, granted the appeal of Kepler. He's a former police officer and member of the Creek Nation who was sentenced to 15-years in prison for the 2014 killing of his daughter’s boyfriend in Tulsa on land within the historic reservation of the Muscogee (Creek) Nation. (Oklahoma State Department of Corrections via AP)

OKLAHOMA CITY (AP) — The Oklahoma Court of Criminal Appeals on Thursday overturned the manslaughter conviction and 15-year prison sentence of a former Oklahoma police officer based on a U.S. Supreme Court ruling that much of eastern Oklahoma remains an American Indian reservation.

Former Tulsa officer Shannon James Kepler, 60, is a member of Creek Nation who was convicted of killing his daughter’s boyfriend in Tulsa on land within the historic reservation of the Muscogee (Creek) Nation.

In a ruling last year known as the McGirt decision, the U.S. Supreme Court found that Oklahoma lacks jurisdiction for crimes on tribal reservations in which the defendants or victims are tribal citizens. The decision has led to a massive increase in caseloads for federal prosecutors in Oklahoma.

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After three trials on the state murder charges ended with deadlocked juries, Kepler, who is white, was convicted in 2017 on state charges of manslaughter for the fatal shooting of Jeremy Lake, 19, who was Black.

Kepler, off-duty at the time of the shooting, claimed he fired in self-defense because Lake was armed, but no weapon was found at the scene.

Federal prosecutors filed a first-degree murder charge against Kepler in the case in November, after he had appealed his conviction, citing McGirt.

“In anticipation that Shannon Kepler’s state murder conviction would be dismissed by the Oklahoma Court of Criminal Appeals, the U.S. Attorney’s Office charged Kepler in a three-count indictment for the murder of Jeremey Lake,” acting U.S. Attorney Clint Johnson said in a statement to The Associated Press. “We did so in November to ensure a seamless and timely transition from state to federal court once the decision was made.”

Kepler’s motion to dismiss the federal charge on grounds of double jeopardy were rejected in January. He has pleaded not guilty to the charge.

Kepler’s attorney did not immediately return a phone call seeking comment.

The appeals court on Thursday also overturned the first-degree murder conviction and life sentence of Jordan Batice Mitchell, who was sentenced for the 2013 shooting death of a man in Tulsa. The court determined Mitchell was a registered citizen of the Muscogee (Creek) Nation and that the crime occurred within the tribe’s reservation boundaries.

The state appeals court last week overturned two convictions based on McGirt, including that of Shaun Bosse, who was sentenced to death for killing a woman and her two children.