Former New England mob boss Francis “Cadillac Frank” Salemme pleaded not guilty Thursday in connection with the murder of a nightclub owner.

Salemme and an associate were indicted in June in the 1993 murder of South Boston nightclub owner Steven DiSarro. DiSarro disappeared in May 1993; his remains were found buried behind a building in Providence, Rhode Island back in March.

Salemme’s attorney denied the charges and added that his client is not a government informant.

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