>> it's a neighbor's house. >> reporter: but when they got there, police stopped them. >> we were just hoping diren would just walk out somewhere, you know, show up and come out the door. >> i walked up to the police officer. gave him a name and description. and that's when she kind of went, well, just wait here for a second. and then came back and said, i think you guys need to go to the hospital. and that it wasn't good. and as soon as she said that, i thought, gosh, we just passed an ambulance running up there. and he must have been in the ambulance. >> what happened on that quiet street? did diren and robby stumble into a burglary in progress or a violent home invasion? the police asked robby to answer some questions. while kate and randy rushed to the hospital. >> it wasn't long after we got there that the e.r. doc came out and explained that his wounds were fatal, and that he was no longer alive. >> terrible feeling. >> it was horrible. i went outside the hospital many