MOUNT CLEMENS (AP) — A young man has been sentenced to at least 15 years in prison in connection with a fire that that killed his 17-year-old brother in the family’s suburban Detroit home.

Mark Marroki learned his punishment Wednesday in a Macomb County courtroom after earlier pleading no contest to second-degree murder in the case. He originally faced a first-degree murder charge . A no contest plea isn’t an admission of guilt but is treated as such for sentencing purposes.

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Marroki told the court he’s “deeply sorry for what happened” and called it “the worst choice I’ve ever made.”

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The April 28, 2017, fire trapped Matthew Marroki-Yaldo in an upstairs bedroom. Other family members made it safely from the burning home. Prosecutors say the fire was started after a dispute.

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