CHICAGO (CBS) — Attorneys for a man who said he was tortured into confessing to murder plan to file a civil lawsuit.

James Gibson spent 30 years in prison before prosecutors dropped all charges. Gibson was convicted of double murder in 1989. Uncooperative witnesses and the death of a key witness led to his freedom last month.

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However, prosecutors insisted this was not a wrongful conviction.

But Gibson said officers under former Chicago Police Commander Jon Burge tortured him into confessing. Burge was convicted of lying about the torture of criminal suspects.

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He died last September.

This will be the first wrongful conviction lawsuit presented to the city since Mayor Lori Lightfoot took office.

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As of now, the total payout to Burge victims is more than $100 million.