(AP) - Attorneys for Martin Tankleff say they're preparing a lawsuit accusing law enforcers of civil rights violations. The Long Island man spent 17 years in prison after what he called a coerced confession to killing his wealthy parents.

An appellate court ruled in December 2007 that key evidence wasoverlooked. Prosecutors decided not to retry Tankleff.

Attorney Bruce Barket told Newsday that Tankleff will seek about$35 million.

Government attorney Christine Malafi says Suffolk County willvigorously defend itself.

Tankleff's parents were found on Sept. 7, 1988 in their home inBelle Terre, a well-to-do waterfront enclave. Arlene Tankleff wasbludgeoned. Seymour Tankleff was stabbed and died about a monthlater.

Tankleff's attorneys plan to file the federal suit Tuesday inCentral Islip.

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