The forensics tech said he was able to match Tommy Beltran's fingerprints to ones on the pipe because he was fingerprinted in Texas when he applied for welfare. For one there isn't any state that fingerprints people for welfare. Tommy may have been fingerprinted in Texas however if he was not a U.S. citizen and was applying for either a alien worker visa or a resident alien permit (green card). However these fingerprints are not added to the IAFIS database, they are only taken to confirm that the individual has not previously been convicted of a crime.