of senate bill 1070 say its purpose is to crack down on crime, like that experienced by rancher robert krentz. he was interviewed in 1999. >> you know, we personally been broke in once, and they took about $700 worth of stuff, and, you know, if they come in and ask for water i'll still give them water. you know, that's just my nature. >> in march, krentz was murdered. his killing spurred passage of the new law because it was suspected that he was killed by an illegal. now there is evidence that the killer was not an immigrant. overall, the violent crime rate in arizona is down, and so is property crime, and census data shows that immigrants are less likely to commit crimes than legal residents. >> the legislature would say that this law is intended to stop home invasions, drugs coming across the border, guns being smuggled is absurd. in no way does this law even begin to address those issues. >> father raul trevizo pastors a catholic parish in tucson, near the border, of about 4,000 families, many of them undocumented. >> all this law does is put fear in people who are here as economic refuge