Are you sure that your door was locked and there was nobody in the house? Please tell us all of the information.
Yes, there was nobody inside and the door was locked.
Hello, I just wanted to let you know that I just came home and there is blood on my front door handle. My front door was also open.
We are on our way. Make sure that you are over there near the door and wait for us to come.
Yes, I am very scared. What should I do?
I will have to call a specialist in this so they can exactly figure out what happened and what you should do. We shouldn't touch anything that looks involved with what happened and wait for them to come.
This looks very serious because there is blood on the floor and there is also a knife with blood on it. Looks like there was a murder over here
Oh, good news! They got here, you don't need to worry. They will see what happened.
I'm getting very nervous. How much longer do you think that it would take for them to get here?
In order to find out exactly what happened, we will have to go inside and look at everything that seems to looks involved