EAST MEADOW - A inmate's suicide at the Nassau County Jail has activists calling for better oversight at the facility. Former Marine Bart Ryans, 33, was jailed Thursday on a driving under the influence charge, officials say. Less than 24 hours later, his lifeless body was found in his cell. It marks the fifth suicide and the seventh death at the jail in the past two years. Officials with the Nassau County Sheriff's Department say Ryan received a mental health screening upon admission and was placed in a special wing. Still, Ryan's lawyer and devastated family members say he should have been watched more carefully. Ryan's brother says he suffered from post-traumatic stress disorder after a tour in Iraq. The New York chapter of the American Civil Liberties Union is calling for the formation of an independent committee to oversee the jail. However, Sheriff's Department officials argue that adequate controls are already in place and such a committee would be a waste of resources. The Sheriff's Department says its own internal affairs unit and the Nassau County police are investigating Ryan's death.Nassau County Jail inmates cry foul over 'inhumane' conditionsOfficials express concern over conditions at Nassau County Jail