Mexico City , Mexico ( CNN ) -- Diego Fernandez de Cevallos , a prominent Mexican politician kidnapped in May , was released and back at his home Monday . `` I am fine , thanks to God . I am strong and my life will continue to be the same , '' he told the crush of reporters gathered outside of his home in Mexico City . `` As a man of faith , I have already forgiven them , '' Fernandez de Cevallos said about his kidnappers . `` But as a citizen , I believe the authorities have a job to do . '' Fernandez de Cevallos , a former senator and congressman and a close ally of Mexican President Felipe Calderon , disappeared on May 14 near his ranch in the state of Queretaro in central Mexico . Blood and other signs of a struggle were found , police said . Federal prosecutors had been investigating the case but later backed off at the request of the ex-senator 's family members . Sporting a white beard , Fernandez de Cevallos seemed thin and much older Monday than in previous public appearances . He was a presidential candidate in 1994 . He belongs to the same political party as Calderon , leading some officials to speculate that he may have been abducted by narcotraffickers . More than 30,000 people have been killed since Calderon declared war on the drug cartels shortly after taking office in December 2006 . Fernandez de Cevallos ' conservative politics also have led others to speculate that leftist guerrillas may have abducted him .
NEW : ' Fernandez de Castro : ` ` I am strong '' He is back at his home . Fernandez de Castro was abducted on May 7 ; it is unclear who abducted him or why .