A former hospital volunteer accused of obtaining personal health information of trauma patients at University Medical Center has pleaded guilty in federal court to conspiracy charges. Fifty-five year-old Richard Charette faces up to five years in prison and a 250-thousand dollars fine when he is sentenced in May. Prosecutors say Charette paid a UMC supervisor more than nine-thousand dollars for the records of 55 patients, then used the information to solicit clients and patients on behalf of local chiropractors and personal injury lawyers. An unidentified doctor tipped off the FBI, which led to a grand jury indictment against Charette. He entered the plea one week before he was scheduled to go to trial. At least two local attorneys are under investigation by the State Bar of Nevada in connection with the scheme, and three doctors have been named in at least two lawsuits.