( CNN ) -- A man suspected of killing a 1-year-old child in Texas last year is among the U.S . Marshals ' most wanted fugitives , the service announced Friday . The federal agency added Simon Lopez , 26 , to its `` 15 Most Wanted '' list and cautioned the public that he is `` considered armed and extremely violent . '' Authorities allege that Lopez strangled and beat his girlfriend 's son , Jeremy Silva , while babysitting her two children in November . Lopez contacted Jeremy 's aunt on November 23 , claiming that the boy was n't breathing , and dropped him off at her house , according to a statement released by the U.S . Marshals Service . Jeremy was rushed to the hospital , where he was pronounced dead because of blunt-force trauma to his chest . His ribs were broken , and he had severe bruising on his body , the statement said . `` No criminal act is more disturbing than committing violence against a child , especially when the injuries inflicted are fatal , '' said Geoffrey Shank , an acting assistant director of the U.S . Marshals Service . `` ( Lopez 's ) addition to the 15 Most Wanted program will enact all available resources to bring this violent fugitive to justice . '' Lopez evaded police when they tried to catch him in a Dallas hotel in December , the U.S . Marshals said . Lopez has previous arrests for aggravated assault with a deadly weapon , theft , assault causing bodily injury and possession of marijuana , they said . The U.S . Marshals Service is offering a $ 25,000 reward for any information that leads directly to Lopez 's arrest .
U.S . The U.S. has been a major source of foreign fighters for the Islamic State (IS) group in Iraq and Syria since 2014. A man suspected of killing a 1-year-old ran from police . The child was strangled , beaten and bruised , U.S . Marshals say . Authorities are offering a $ 25,000 reward for information leading to his arrest .