number two, cynthia salazar. but a new romance wasn't enough to cure what ails this >> i used a knife. my heart. and then i tried to slit my throat and missed my carotid, which i was trying to hit. i mean, pretty bad for a surgeon. >> reporter: were you becoming man planning to commit murder? >> more convinced he wouldn't talk about the gun at all. >> do you own any firearms? >> does that have to do with this, that threat thing? >> just a simple question. do you own any firearms? >> yeah. i want an attorney for that one. >> reporter: finally the ever-talkative dr. konrath realizes it's time to clam up. and as hours pass, the cops may have a motive, but still don't have a crime. >> well, at this point, you're free to go. >> reporter: detective rogers will search this humble rental home konrath and joannah were sharing. and in the garage, they hit pay dirt. >> this is a photograph of the garage. the gun was actually located in this bag. >> and we found everything he said he had laid out in that house. >> reporter: