Turns out. there might be legislative initiatives. reality is, police identified people looking at things for all time. here technology -- >> and privacy advocates are speaking about this. you know they had a court order another site distal could've gotten this. >> absolutely! they could have gone to report and got an order or a search warrant. lester is a hypothetically ancestry. but they may have needed an element or level of probable cause that they didn't have yet. >> back in the 70s they did not have the dna technology. for this suspect that was charged. and there were four murders so far...