( CNN ) -- Federal prosecutors indicted an Arkansas doctor Wednesday in the bombing attack of the head of the state 's medical board . It 's the same board , prosecutors said , that had taken disciplinary action against the defendant . Randeep Mann , a Russellville , Arkansas , doctor , is charged with one count of using a `` weapon of mass destruction '' against a person and property and a second count of `` maliciously '' using an explosive to damage or destroy a vehicle , according to prosecutors . Both charges accuse Mann of undertaking the crimes with the help of others , though the identities of others potentially involved have not been released . The doctor who was the target of the attack survived but suffered injuries that included losing an eye . A third charge filed Wednesday accuses Mann of possessing chloroform in his jail cell , according to a news release from the U.S. Attorney of the Eastern District of Arkansas . Mann , arrested initially on firearms charges , has been jailed since March 4 . U.S. Attorney Jane Duke , speaking at a news conference , declined to comment on the suspected purpose of the chloroform . Attorneys for Mann had no comment when contacted by CNN on Wednesday . Mann , whose specialty was internal medicine and pain management , allegedly set off an explosion that injured family practitioner Trent Pierce on February 4 , outside Pierce 's West Memphis , Arkansas , home . On his way to his clinic that morning , the chair of the Arkansas State Medical Board went out to start his Lexus hybrid SUV . Before he ever got into the car , a bomb went off , Duke said . The blast , heard a mile away , threw Pierce six feet into a flower bed , police said . Pierce lost his left eye in the explosion , and suffered burns to his face . Pierce was due at a subcommittee meeting of the state medical board later on the day of the attack , Duke said . Early in the investigation , cases before the medical board were examined for potential leads . The board oversees licensing of medical professionals , and , in some cases , disciplines those professionals by suspending or revoking their licenses . Mann had `` multiple disciplinary matters '' before the board , Duke said . A call by CNN to the board 's counselor for information on cases against Mann was not immediately returned . But Duke said the board had taken several disciplinary actions against Mann 's license . Mann was interviewed by federal agents the day of the bombing and showed them `` at least one grenade launcher he legally owned , '' the U.S. attorney 's office said in the release . But he was n't arrested until a month later , after city employees uncovered partially buried `` high explosive rounds designed to be fired from a grenade launcher '' in a wooded area of London , Arkansas , the release said . An August indictment against Mann charged him with four counts involving the possession of unregistered firearms and explosives , including a machine gun and 98 grenades , according to court documents .
Dr. Randeep Mann charged with using `` weapon of mass destruction '' against a person . The case is being heard by the Delhi High Court in New Delhi. Pierce was head of State Medical Board , which was hearing case against Mann .