1) Examine The Crime Scene.
2) Get Assistance From Jorleif.
I know that for examining the crime scene I need to follow the blood trail to "Hjerim" but that hasn't helped. Also there is no option in the talk menu for attempting to get assistance from Jorleif. When I started this quest I was in a rush to do a Stormcloak quest so I quickly spoke to the witnesses and the guard and carried on. Now the body has been moved to "Hall of the Dead" and the guard is missing. I'm assuming that this is a glitch.
What shall I do?