weapon and confronted the male and did not see the wife and police say she shot and killed him. police arrived and exchanged gun fire with the couple before the wife wounded shot her husband. then, shot herself. >> it was pretty much always talking about how much, you know, you know, the government's changed the united states of america. >> reporter: many living in the same apartment complex heard the radical views. they talk about the love for each other and a picture of facebook show it is affection for the joker from the batman series. kelly fielder says looking back, the red flags are obvious. she wishes she had done something. >> i am so, so, so sorry to everybody that -- i'm sorry. >> kuang joins us now from las vegas. the fact she witnessed what seemed to be a lot of red flags, when's the las vegas police department saying about that? >> reporter: well, they actually addressed this in their news