Inmate challenges convictions, death sentences for 5 inmate slayings in 1993 Ohio prison riot

This undated photo provided by the Ohio Department of Rehabilitation and Corrections shows Keith LaMar. The 6th U.S. Circuit court of Appeals will hear arguments Tuesday, Dec. 2, 2014, in LaMar's appeal. LaMar, an inmate convicted and sentenced to be executed for the slayings of fellow inmates during a 1993 prison riot in southern Ohio, is challenging his convictions and death sentences before a federal appeals court. (AP Photo/Ohio Department of Rehabilitation and Corrections) (The Associated Press)

CINCINNATI – An inmate sentenced to death for the slayings of five fellow inmates during a 1993 Ohio prison riot says he was denied a fair trial and his case should be overturned.

David Doughten, an attorney for 45-year-old Keith LaMar, argued Tuesday in federal appeals court in Cincinnati that trial prosecutors withheld evidence from the defense. He says the prosecution didn't provide transcripts and summaries from inmates who witnessed the slayings.

LaMar was convicted of aggravated murder in the deaths of five inmates during the riot at the Southern Ohio Correctional Institution in Lucasville.

The 11-day riot ended in the deaths of nine inmates and a prison guard.

An attorney representing the state said Tuesday that the defense at trial was provided time and funding for investigative services to interview inmates.