searches that told them what dennis potts was thinking, and when. the internet for help on this topic, "committing murder." june 26, one month to the day before the murders, dennis searches, "court-ordered paternity test procedure." later that same day, he asks for information on, "how to cheat a swab paternity test." two days later, dennis wants to know the "best way to kill someone." two days after that, he's asking about "getting away with murder." july 7, dennis looks up information on "getting out of child support." july 19, "performing chokehold." and later, "how to kill someone." july 25 at 4:16 in the afternoon, dennis searches cyberspace again. his topics, "knocking someone unconscious" and "knocking someone in the head." the next day was july 26, 2006. tori and dean were murdered. craig melvin: coming up, an arrest, a trial, and a dramatic order from a judge-- dayna herroz: he left the bench, came back, and you could tell he'd been crying. craig melvin: --when "dateline" continues. introducing new advil targeted relief. the only topical pai