New York ( CNN ) -- David Ranta , who was released from prison a day earlier because of a wrongful conviction , suffered a heart attack Friday evening , according to his lawyer . `` My office is happy to report that he 's been stabilized and is being treated in cardiac intensive care at a metropolitan hospital , '' Pierre Sussman said in a statement released Saturday . Ranta 's second-degree murder conviction stemmed from the 1990 killing of a rabbi during a diamond heist . A witness two decades later came forward and said he had been coached to identify Ranta from a police lineup . After an investigation , prosecutors recommended that Ranta 's conviction be tossed out . `` Mr. Ranta , to say that I 'm sorry for what you have endured would be an understatement and grossly inadequate , but I say it to you anyway , '' Judge Miriam Cyrulnik said during an emotional hearing Thursday that left even the judge wiping her eyes . Hours after Ranta 's release from prison , Sussman told CNN that his client intends to file a civil rights lawsuit against the city of New York and the New York Police Department . He said the accumulated trauma of being wrongfully convicted and incarcerated for 23 years had an immense effect on Ranta 's health . `` David wants me to express appreciation to all of his supporters and well-wishers , not only from New York , but from around the world , '' Sussman said Saturday . CNN 's Mary Snow , Aaron Cooper , Raelyn Johnson , Laura Ly and Jordana Ossad contributed to this report .
David Ranta served 21-plus years for the killing of a Brooklyn rabbi in 1990 . A witness told prosecutors he 'd been coached . Score: 6